FSnet Aug. 28/08 -- III
BARFBLOG:
Stick it in: Use a thermometer to cook foods so your friends
donít barf at football

New
International Food Safety Network Infosheet -- 31 patrons of
Bar-B-Q Center in Lexington, NC Ill with norovirus

UK: Families
ill after outbreak of E.coli

CDC:
Salmonella outbreak appears to be over

US:
Salmonella outbreak ends with questions

Outbreak of
Salmonella Serotype Saintpaul infections associated with
multiple raw produce items --- United States, 2008

FLORIDA:
Strawberry growers gather for food safety updates

National Post
Editorial Board: Listeriosis outbreak points at a broken
system

Some key
dates in the development of the cross-CANADA listeriosis
outbreak

'Eat meat and
die!' warning drives home lifesaving message

SPAIN probes
possible fourth human case of mad cow disease

CALIFORNIA:
Raw milk program has done great things for community

US: Back to
school food safety tips for parents and students

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BARFBLOG:
Stick it in: Use a thermometer to cook foods so your friends
donít barf at football
28.aug.08
barfblog
Andrew Reece
http://barfblog.foodsafety.ksu.edu/2008/08/articles/food-safety-communication/stick-it-in-use-a-thermometer-to-cook-foods-so-your-friends-dont-barf-at-football/index.html
U.S. college football kicks off Saturday. Time to put on
your favorite schoolís colors and brush up on that fight
song. Thousands of students and alumni will be heading out
to the stadium, tailgating, and firing up those grills.
Hamburgers, chicken, ribs, or beans, there will be plenty of
food on hand.
Use a food thermometer to make sure you arenít serving your
friends and family undercooked meats. Make sure to cook
ground beef to 160F(1), while chicken needs to reach
165F(2). That way when your team takes the field, you
arenít puking or stuck on the toilet. And using a
thermometer will make you a better cook. People are
impressed by this. Good food safety will allow you to fully
enjoy the tailgating atmosphere, so you can cheer your
school onto victory.
Itís all on video,
http://www.youtube.com/watch?v=YmyMmjfFo5Y
References
1: Ryan, Suzanne M., Mark Seyfert, Melvin C. Hunt, Richard
A. Mancini. Influence of Cooking Rate, Endpoint Temperature,
Post-cook Hold Time, and Myoglobin Redox State on Internal
Color Development of Cooked Ground Beef Patties. Journal of
Food Science. Volume 71 Issue 3 Page C216-C221, April 2006
http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-2621.2006.tb15620.x?prevSearch=authorsfield%3A%28M.C.+Hunt%29
2: Focus On: Chicken. Food Safety and Inspection Service.
United States Department of Agriculture. April 4, 2006.
http://www.fsis.usda.gov/factsheets/chicken_food_safety_focus/index.asp
New
International Food Safety Network Infosheet -- 31 patrons of
Bar-B-Q Center in Lexington, NC Ill with norovirus
28.aug.08
International Food Safety Network
http://www.foodsafety.ksu.edu/articles/1229/iFSN-infosheet-8-28-08.pdf
The newest food safety infosheet, a graphical one-page food
safety-related story directed at food handlers, is now
available at foodsafetyinfosheets.ksu.edu.
Infosheet highlights:
-Linked to food handler who wasn't ill
-A food handler who had recently cared for an ill family
member likely introduced norovirus into the kitchen
-Infected people can shed large amounts of norovirus in
their vomit and poop
-Norovirus can persist on common kitchen surfaces for at
least 3-6 weeks
Infosheets are created weekly by iFSN and are posted in
restaurants, retail stores, on farms and used in training
throughout the world. If you have any infosheet topic
requests, or photos, please contact Ben Chapman at
bchapman@uoguelph.ca
UK: Families
ill after outbreak of E.coli
28.aug.08
Evening Express
David Ewen and Alison Rennie
http://www.eveningexpress.co.uk/Article.aspx/810344?UserKey=0
http://barfblog.foodsafety.ksu.edu/2008/08/articles/e-coli/memories-of-walkerton-drinking-water-in-scotland-wells-sickens-15-with-e-coli-o157/index.html
Up to 15 people ń including children ń were this afternoon
being treated for E.coli after an outbreak of the bug near
Aberdeen.
Seven cases have already been confirmed with a further eight
people showing symptoms.
Public health chiefs have launched an investigation.
They believe the source is a shared private water supply to
eight homes in South Auchinclech, near Westhill.
The e.coli bug can be a killer for young children and the
elderly but NHS Grampian refused to say what age range of
people had been struck down.
A spokesman said: ěThe numbers involved are so small, we are
concerned about identifying the individuals.î
Three victims were reportedly taken to hospital.
Aberdeen-based Prof Pennington, a world expert in e.coli,
said the source of the contamination was likely to be cattle
manure.
He said: ěThere is quite a strong possibility it got washed
into the water supply by heavy rain.
ěThe water purification system probably got overwhelmed. Ö
Once somebodyís been affected, weíve just got to keep our
finger crossed.î
CDC:
Salmonella outbreak appears to be over
28.aug.08
Associated Press
Ricardo Alonso-Zaldivar
http://ap.google.com/article/ALeqM5jgFWGWTW9iJ8-l2sKdiURx-NrlJgD92RCRP80
WASHINGTON ó The Centers for Disease Control and Prevention
say the salmonella outbreak that sickened more than 1,440
people appears to be over.
A joint investigation by CDC and the Food and Drug
Administration found strong evidence that jalapeno peppers
were a major carrier of the bacteria, and that serrano
peppers were also a carrier. The salmonella strain that
caused the outbreak was traced back to a produce
distribution center in Texas, and to a farm in Mexico that
grew peppers.
The extensive probe found no contaminated tomatoes, but
investigators say they cannot rule out that tomatoes might
have been a carrier, particularly early on.
It was the largest outbreak of foodborne illness in the
United States in the past decade.
US:
Salmonella outbreak ends with questions
28.aug.08
New York Times
Mike Nizza
http://thelede.blogs.nytimes.com/2008/08/28/salmonella-outbreak-ends-with-questions/?hp
The United States governmentís response to the Salmonella
outbreak has emerged in a series of utterly frank briefings,
so it was fitting that officials wrote the last chapter with
a hint of uncertainty.
ěThe outbreak appears to be over,î a Centers for Disease
Control and Prevention report released said today. ěHowever,
C.D.C. and state health departments are continuing to
conduct surveillance for cases of infection with the
outbreak strain.î
While the first-order problem of stopping the illness was
apparently solved, the C.D.C. has a few holes remaining in
tracing the pathogenís origins. Here are the C.D.C.ís
preliminary findings on the roles of three major produce
suspects in carrying Salmonella:
ń JalapeŇo peppers: ěmajor vehicleî
ń Serrano peppers: ěalso were a vehicleî
ń Tomatoes: ěpossibly were a vehicle for infection,
particularly early in the outbreakî
The relatively long explanation for the third item reflected
a failure to find salmonella in any tomatoes linked to the
illnesses, as was the case for the peppers. But a much
longer section of the report listed several signs that that
they were involved:
Tomatoes possibly were a vehicle for infection, particularly
early in the outbreak. In the initial case-control study,
illness was significantly associated with consumption of raw
tomatoes and not with foods containing peppers, such as
salsa or guacamole. Consumption of jalapeŇo or serrano
peppers was not assessed in this initial study because in
hypothesis-generating interviews conducted with 19
case-patients, only five (26%) reported eating peppers other
than red or green bell peppers in the week before illness
began. In addition, a survey of 75 case-patients in Texas
whose illnesses began before June 7, using a questionnaire
that asked specifically about pepper consumption, found a
relatively low proportion who reported eating raw jalapeŇo
(39%) or raw serrano (8%) peppers in the week before illness
began, whereas reported raw tomato consumption was high
(85%). Finding the outbreak strain on two types of peppers
from two farms supports the possibility of contamination of
other produce items, including tomatoes, during growing,
processing, or distribution.
The final ruling on whether tomatoes sickened Americans will
be of great interest to growers and others in the food
industry. F.D.A. warnings against tomatoes in June slowed
sales, but the outbreak failed to slow. Just as
investigators began to turn other suspects, one group blamed
$100 million in food industry losses on what became known as
the tomato scare. Whether todayís evidence was worth that
much in lost business remains to be seen.
Back in July, state health officials considered whether a
mistake had been made over tomatoes, and how to address it.
From The Baltimore Sun:
ěItís bad, and I think everyone will be very apologeticî if
it turns out tomatoes werenít the source, said Tim Jones,
Tennesseeís state epidemiologist, describing himself as
ěincreasingly concernedî about whether tomatoes are to
blame.
To be sure, the lingering questions serve another purpose
for the F.D.A. and C.D.C. ěThese findings indicate that
additional measures are needed to enhance food safety and
reduce illnesses from produce that is consumed raw,î the
report said.
Dr. David Acheson, the agencyís associate commissioner for
foods, named a few ideas in a conference call with reporters
today. From Reuters:
We need Congress to give the FDA authority Ö for mandatory
controls for fresh foods,î Acheson told the briefing.
ěWe need to develop technologies which will enable us to
detect pathogens in fresh produce more quickly,î he added.
And industry must do more electronic tracking of products.
ěIndustry is responsible for safe products and tracking
(them),î Acheson said. ěThe point is that not all industry
is doing it and there need to be standards.î
He also said that irradiating fresh spinach and lettuce, a
practice approved earlier this month, was ěpart of a
solution.î Unfortunately, USA Today reported today that
several significant hurdles remain before food producers
embrace the safeguard.
Outbreak of
Salmonella Serotype Saintpaul infections associated with
multiple raw produce items --- United States, 2008
29.aug.08
MMR Weekly August 29, 2008 / 57(34);929-934
http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a1.htm?s_cid=mm5734a1_x
On May 22, 2008, the New Mexico Department of Health (NMDOH)
notified CDC about four persons infected with Salmonella
Saintpaul strains that were indistinguishable from each
other by pulsed-field gel electrophoresis (PFGE) and 15
other persons with Salmonella infections whose isolates had
not yet been characterized. In the following weeks, cases
continued to be reported, and the outbreak expanded to
include 43 states, the District of Columbia (Figure 1), and
Canada. This report is an interim summary of results from
seven epidemiologic studies, traceback investigations, and
environmental investigations related to the outbreak.
Further data collection and analyses are ongoing. As of
August 25, 2008, a total of 1,442 persons had been reported
infected with the outbreak strain. At least 286 persons have
been hospitalized, and the infection might have contributed
to two deaths. The outbreak began late in April 2008, and
most persons became ill in May or June. The outbreak appears
to be over; however, CDC and state health departments are
continuing to conduct surveillance for cases of infection
with the outbreak strain. Preliminary epidemiologic and
microbiologic results to date support the conclusion that
jalapeŇo peppers were a major vehicle by which the pathogen
was transmitted and serrano peppers also were a vehicle;
tomatoes possibly were a vehicle, particularly early in the
outbreak. Contamination of produce items might have occurred
on the farm or during processing or distribution; the
mechanism of contamination has not been determined. These
findings indicate that additional measures are needed to
enhance food safety and reduce illnesses from produce that
is consumed raw.
Epidemiologic Studies
A case was defined as laboratory-confirmed infection with
Salmonella Saintpaul with XbaI pattern JN6X01.0048, the
outbreak strain. Of the 1,442 cases reported, public health
agencies have reported illness onset information for 1,414
patients. Illnesses began during April 16--August 11; most
persons became ill in May or June (Figure 2). Complete
demographic information is available for 565 ill persons. Of
these, 52% were male; 79% were white, 8% were American
Indian/Alaska Native, 3% were black, 2% were Asian/Pacific
Islander, and 7% reported other or multiple races. Hispanic
ethnicity was reported for 22%. Patient ages ranged from <1
to 99 years (median age: 33 years), and the highest
incidence was among persons aged 20--29 years. Cases were
distributed among 43 states, the District of Columbia, and
Canada, with particularly high incidence rates in New Mexico
and Texas (Figure 1).
Soon after the first cases were detected in mid-May 2008,
additional cases were identified in Texas and the Navajo
Nation through PulseNet (the national molecular subtyping
network for foodborne disease surveillance). Nineteen ill
persons were initially interviewed in detail to generate
hypotheses about the source of their illnesses. To identify
the source, NMDOH, the Texas Department of State Health
Services (TXDSHS), Navajo Nation, the Indian Health Service
(IHS), and CDC conducted a multistate case-control study of
laboratory-confirmed infections. For this case-control
study, a case was defined as diarrheal illness (three or
more loose stools in a 24-hour period) that began on or
after May 1 in a person infected with the outbreak strain.
Controls were well persons in the community matched by age
and location using reverse telephone directories and by
face-to-face interviews. The matched analysis included 51
case-patients and 106 controls. Using a questionnaire based
on hypotheses generated by the preliminary interviews, study
participants were asked about foods consumed during the week
preceding their illness. On univariate analysis, illness was
significantly associated with eating raw tomatoes (matched
odds ratio [mOR] = 6.7) and had a borderline association
with eating tortillas (mOR = 2.8) in the week preceding
illness onset (Table). Illness remained significantly
associated with eating raw tomatoes (mOR = 5.6) after
adjusting for consumption of tortillas (Table). Illness was
not significantly associated with eating salsa (mOR = 1.7),
guacamole (mOR = 1.6), or any other food item (Table).
In June, increasing numbers of cases were reported from a
growing number of states. State and local health departments
identified clusters of illness in restaurants by
interviewing ill persons whose isolates had the outbreak
PFGE pattern and asking about exposures to suspect foods and
about any recent meals at restaurants. Beginning on June 20,
TXDSHS and CDC investigated a cluster of 47 ill persons
associated with a Mexican-style restaurant in Texas. For
this case-control study, a case was defined as diarrheal
illness (three or more loose stools in a 24-hour period) in
a person who ate at the restaurant in the week before
illness began; culture confirmation was not required.
Controls were well meal companions. The analysis included 47
case-patients and 36 controls. On multiple logistic
regression, illness was significantly associated only with
eating salsa (adjusted odds ratio [aOR] = 62.3) (Table). The
salsa ingredients included raw tomatoes and raw jalapeŇo
peppers.
Beginning on June 24, TXDSHS and CDC investigated another
cluster of 33 ill persons, this one associated with a local
Mexican-style restaurant chain in Texas. For this
case-control study, a case was defined as diarrheal illness
(three or more loose stools in a 24-hour period) in a person
who ate at either of two restaurants in the chain during the
week before illness began; culture confirmation was not
required. Controls were well meal companions and restaurant
patrons identified by credit card receipts. The analysis
included 33 case-patients and 62 controls. Illness was
significantly associated only with eating salsa (aOR = 7.5)
(Table). The salsa ingredients included commercially canned
tomatoes and raw jalapeŇo peppers, but not raw tomatoes.
These results indicated that jalapeŇo peppers were a likely
source of illness.
Beginning on June 26, to further investigate possible food
vehicles, CDC and state and local health departments in 29
states conducted a second multistate case-control study of
laboratory-confirmed infections identified through PulseNet.
A case was defined as diarrheal illness (three or more loose
stools in a 24-hour period) that began on or after June 1 in
a person infected with the outbreak strain. Controls were
well persons in the community matched by age and location
using reverse telephone directories. The matched analysis
included 141 cases and 281 controls. After adjusting for
sex, Hispanic ethnicity, and additional age variation,
illness was significantly associated with eating at a
Mexican-style restaurant in the week preceding illness onset
(mOR = 4.6) (Table). Illness also was significantly
associated with eating pico de gallo (mOR = 4.0), corn
tortillas (mOR = 2.3), and freshly prepared salsa (mOR =
2.1) (Table). Illness was not significantly associated with
any other individual food items or ingredients.
Beginning on June 30, the Minnesota Department of Health
investigated a cluster of 19 persons with Salmonella
Saintpaul infection associated with a natural food
restaurant. For this case-control study, a case was defined
as diarrheal illness (three or more loose stools in a
24-hour period) in a person infected with the outbreak
strain who ate at the restaurant in the week before illness
began. Controls were well meal companions and restaurant
patrons identified by credit card receipts. The analysis
included 19 case-patients and 73 controls. On univariate
analysis, illness was significantly associated with eating
any of several items including salsa, guacamole, red bell
peppers, cilantro, and jalapeŇo peppers. Both types of
peppers had been diced before they arrived at the
restaurant. On multivariate analysis, illness was only
significantly associated with eating raw, jalapeŇo peppers
(OR = 62.0) (Table). This study provided more evidence that
consumption of raw jalapeŇo peppers was a major risk factor
for illness.
Beginning on July 7, the North Carolina Division of Public
Health, the Mecklenburg County Health Department, and CDC
investigated a cluster of 13 ill persons associated with a
local Mexican-style restaurant. For the case-control study,
a case was defined as diarrheal illness (three or more loose
stools in a 24-hour period) in a person infected with the
outbreak strain who ate at the restaurant in the week before
illness began. Controls were well restaurant patrons
identified by credit card receipts. The analysis included
four case-patients and 113 controls. On multivariate
analysis, illness was significantly associated only with
eating guacamole (aOR = 8.7) (Table). The guacamole
ingredients included avocado, raw Roma tomatoes, raw red
onions, raw serrano peppers, cilantro, salt, and lime juice,
but not jalapeŇo peppers. This study demonstrated that not
all of the outbreak illnesses could be linked to eating
jalapeŇo peppers.
During May 22--August 7, state and local health departments
in 14 states and the District of Columbia reported a total
of 33 restaurant-associated clusters of illness. The median
number of laboratory-confirmed cases for all clusters was
four; 26 (79%) of the 33 clusters had eight or fewer
laboratory-confirmed cases. Raw jalapeŇo peppers were not
served in four of the restaurants, serrano peppers were not
served in 19 restaurants, and raw tomatoes of various types
were served in all restaurants. Of the four restaurants
without raw jalapeŇo peppers, two had serrano peppers.
During July 11--25, NMDOH, the Arizona Department of Health
Services, Navajo Nation, IHS, and CDC conducted a
household-based case-control study among
non-restaurant--associated cases in New Mexico, Arizona, and
the Navajo Nation. A case-household was defined as a
household with a case (defined as diarrheal illness [three
or more loose stools in a 24-hour period] beginning on or
after June 1 in a person infected with the outbreak strain).
Control-households were enrolled systematically from the
same community and had no members who reported diarrheal
illness on or after June 1. The matched analysis included 41
case-households and 107 control-households and compared the
presence of specific foods in the household regardless of
whether the respondent remembered eating them. On univariate
analysis, illness in the household was significantly
associated with having a raw jalapeŇo pepper in the
household (mOR = 2.9), and illness had a borderline
association with having a raw serrano pepper in the
household (mOR = 3.0) during the week preceding illness
onset (Table). Illness was not significantly associated with
the presence of any other food item in the household. A
concurrent case-control study that evaluated
individual-level exposures asked the case-patient in each
case-household and respondents in control-households about
recent food exposures. This study did not identify an
association between illness in the case-patients and eating
raw jalapeŇo or serrano peppers. These results suggested
that at the time these illnesses were occurring, jalapeŇo
peppers and perhaps serrano peppers were likely vehicles for
illness among persons not associated with a restaurant
cluster, although persons might not have specifically
recalled consuming the peppers.
Environmental and Traceback Investigations
The Food and Drug Administration (FDA) traced back the
processing and distribution pathway for tomatoes associated
with several ill persons. These tracebacks did not converge
onto a single packer, distributor, or growing area of
tomatoes. Tomatoes linked to ill persons and tomatoes
randomly collected from the distribution chain in several
states were cultured; none of these cultures yielded
Salmonella.
FDA traced the source of the jalapeŇo peppers associated
with illness in the two previously described Texas
restaurant-associated clusters to distributors in Texas that
received jalapeŇo peppers from Mexico. On July 21, FDA
reported isolation of the outbreak strain from a jalapeŇo
pepper sample obtained from one of these distributors. The
pepper likely was grown on a farm in Tamaulipas, Mexico
(farm A); this farm also grew serrano peppers and Roma
tomatoes. FDA did not isolate the outbreak strain from
environmental samples from farm A, but did isolate the
outbreak strain from a sample of serrano peppers and a
sample of water from a holding pond used for irrigation from
another farm (farm B) in Tamaulipas. Farm B also grew
jalapeŇo peppers, but not tomatoes. Farms A and B provided
produce to a common packing facility in Mexico that exports
to the United States. In addition, on July 29, the Colorado
Department of Public Health and Environment (CDPHE) reported
isolation of the outbreak strain from a jalapeŇo pepper
collected from the household of a person in Colorado who had
developed illness with the outbreak strain. CDPHE traced
this pepper from the grocery store where it had been
purchased to another distributor in Texas, which reportedly
received jalapeŇo peppers from farms in Mexico; however, the
specific farms have not been identified.
Control Measures
Since June 3, CDC, FDA, and public health partners have
issued multiple public advisories recommending that
consumers avoid eating certain produce items. A limited
advisory recommending that consumers in New Mexico and Texas
avoid eating certain types of tomatoes was issued on June 3,
and the advisory was expanded nationwide on June 7 (Figure
2). After associations were identified between illness and
eating jalapeŇo and serrano peppers, CDC and FDA issued
successive advisories recommending that consumers avoid
eating jalapeŇo and serrano peppers grown in Mexico; the
first nationwide jalapeŇo pepper advisory was issued on July
9 (Figure 2). The tomato advisory was lifted on July 17; the
jalapeŇo and serrano pepper advisories remain in effect.
Reported by: J Jungk, MPH, J Baumbach, MD, M Landen, MD, New
Mexico Dept of Health. LK Gaul, PhD, L Alaniz, MPH, T Dang,
MPH, EA Miller, PhD, Texas Dept of State Health Svcs. J
Weiss, PhD, Arizona Dept of Health Svcs. E Hedican, MPH, K
Smith, DVM, Minnesota Dept of Health. F Grant, T Beauregard,
Mecklenburg County Health Dept; D Bergmire-Sweat, MPH, D
Griffin, J Engel, MD, North Carolina Div of Public Health. S
Cosgrove, S Gossack, Colorado Dept of Public Health and
Environment. A Roanhorse, H Shorty, Navajo Nation Div of
Health. J Cheek, MD, J Redd, MD, I Vigil, MD, Div of
Epidemiology and Disease Prevention, Indian Health Svc; Food
and Drug Admin; Div of Foodborne, Bacterial, and Mycotic
Diseases, National Center for Zoonotic, Vector-Borne, and
Enteric Diseases; EIS officers, CDC.
Editorial Note:
Contaminated produce eaten raw is an increasingly recognized
vehicle for transmission of Salmonella and other pathogens
(1). Each year, approximately 36,000 laboratory-confirmed
cases of Salmonella infection are reported in the United
States through national serotype-based surveillance (2).
Salmonella Saintpaul is an uncommon serotype, causing, on
average, 1.6% of all reported laboratory-confirmed
Salmonella infections each year. In 2007, only 40 human
isolates of the outbreak strain were submitted to PulseNet.
This report describes the largest foodborne disease outbreak
identified in the United States in the past decade, based on
the number of culture-confirmed cases. Because many persons
with Salmonella illness do not seek care or have a stool
specimen tested, many more illnesses likely have occurred
than those reported (3).
In this outbreak, epidemiologic studies revealed
associations between illness and more than one raw produce
item. Although most multistate enteric disease outbreaks
have been linked to a single food vehicle, an outbreak
attributed to both parsley and cilantro grown on one farm
has been reported (4). The initial case-control study
identified an association between illness and eating raw
tomatoes. Subsequent studies identified an association
between illness and eating raw jalapeŇo peppers, an item
commonly eaten with tomatoes in Mexican-style cuisine.
Epidemiologic data also suggested an association with raw
serrano peppers. These associations triggered product alerts
and led to product tracing and microbiologic studies, which
indicated that jalapeŇo and serrano peppers grown,
harvested, or packed in Mexico were contaminated with the
outbreak strain. The epidemiologic and microbiologic results
support the conclusion that jalapeŇo peppers were a major
vehicle by which the pathogen was transmitted, and that
serrano peppers also were a vehicle. Consumption of peppers
was not implicated in either of the two multistate
case-control studies. However, produce items such as peppers
that are typically consumed in small quantities as
ingredients of other dishes might not be remembered and can
be difficult to implicate (5). Neither raw jalapeŇo nor
serrano peppers have been identified previously as a vehicle
for a foodborne disease outbreak in the United States.
Little is known about the survival and growth
characteristics of Salmonella on these peppers, although
rapid growth in jalapeŇo pepper extract has been reported
(6).
Tomatoes possibly were a vehicle for infection, particularly
early in the outbreak. In the initial case-control study,
illness was significantly associated with consumption of raw
tomatoes and not with foods containing peppers, such as
salsa or guacamole. Consumption of jalapeŇo or serrano
peppers was not assessed in this initial study because in
hypothesis-generating interviews conducted with 19
case-patients, only five (26%) reported eating peppers other
than red or green bell peppers in the week before illness
began. In addition, a survey of 75 case-patients in Texas
whose illnesses began before June 7, using a questionnaire
that asked specifically about pepper consumption, found a
relatively low proportion who reported eating raw jalapeŇo
(39%) or raw serrano (8%) peppers in the week before illness
began, whereas reported raw tomato consumption was high
(85%). Finding the outbreak strain on two types of peppers
from two farms supports the possibility of contamination of
other produce items, including tomatoes, during growing,
processing, or distribution.
Local, state, tribal, and federal response capacity often is
strained during large and complex outbreaks, and structure
and capabilities vary among jurisdictions. This can cause
delays in identifying cases and in conducting
investigations. In this outbreak investigation, the median
time from illness onset to submission of the PFGE pattern of
patients' Salmonella isolates to PulseNet was 17 days; 90%
were submitted within 27 days. Faster transfer of bacterial
strains to public health laboratories and faster subtyping
in those laboratories would result in more timely
investigation of cases of infection. Epidemiologic
investigations can benefit from faster methods for
interviewing ill and well persons, improved interview
formats, and rapidly adaptable electronic data gathering and
transmission platforms. Improvements in the ability to trace
contaminated produce quickly and accurately also would
improve the speed of investigations, the speed and
specificity of recalls, and the determination of the
ultimate causes of contamination. For several years, CDC has
been improving the efficiency of epidemiologic
investigations through OutbreakNet, the network of public
health officials that investigates outbreaks of enteric
illnesses nationwide, and through participation in the
Council to Improve Foodborne Outbreak Response,* a
multidisciplinary working group.
In addition, FDA has been enhancing the safety of produce by
collaborating with state officials, academia, and industry
on multiyear initiatives to increase the safety of leafy
greens and tomatoes. FDA and its partners are working to
improve guidance and policies intended to minimize outbreaks
and to improve produce-safety research and education.
References
1. Sivapalasingam S, Friedman CR, Cohen L, Tauxe RV. Fresh
produce: a growing cause of outbreaks of foodborne illness
in the United States, 1973--1997. J Food Prot
2004;67:2342--53.
2. CDC. PHLIS surveillance data: Salmonella annual summary,
2005. Atlanta, GA: US Department of Health and Human
Services, CDC; 2007. Available at
http://www.cdc.gov/ncidod/dbmd/phlisdata/salmonella.htm.
3. Voetsch A, Van Gilder TJ, Angulo FJ, et al. FoodNet
estimate of the burden of illness caused by nontyphoidal
Salmonella infections in the United States. Clin Infect Dis
2004;38:S127--34.
4. Naimi TS, Wicklund JH, Olsen SJ, et al. Concurrent
outbreaks of Shigella sonnei and enterotoxigenic Escherichia
coli infections associated with parsley: implications for
surveillance and control of foodborne illness. J Food Prot
2003;66:535--41.
5. Mahon BE, Pnk A, Hall WN, et al. An international
outbreak of Salmonella infections caused by alfalfa sprouts
grown from contaminated seeds. J Infect Dis
1997;175:876--82.
6. Nutt JD, Li X, Woodward CL, et al. Growth kinetics
response of a Salmonella typhimurium poultry marker strain
to fresh produce extracts. Bioresour Technol 2003;89:313--6.
* Information available at http://www.cifor.us.
FLORIDA:
Strawberry growers gather for food safety updates
28.aug.08
The Packer.com
Doug Ohlemeier
http://thepacker.com/icms/_dtaa2/content/wrapper.asp?alink=2008-11511-954.asp&stype=topnews&fb=
PLANT CITY, Fla. ó As they were preparing to put their
winter crops in the ground, Florida strawberry growers and
shippers heard how to keep what happened to tomato growers
from striking the strawberry industry.
At the Florida Strawberry Growers Associationís Aug. 26-27
Agritech 2008 meeting, growers learned what they can do to
keep updated on food safety developments and heard updates
on how legislative action in Washington, D.C., could affect
their harvesting workforce.
Ted Campbell, the Dover-based associationís newly appointed
executive director, said concerns about safety, food
security and traceability along with availability and prices
will remain the focus of todayís food system.
ěWe all watched in agony as tomatoes got crucified in the
media,î Campbell said, referring to an outbreak of
salmonella that the Food and Drug Administration, in part,
blamed on tomatoes.
ěAnd they had a pretty good safety and traceback process in
place,î he said. ěUnfortunately, their acquittal and
execution was pretty low-key. Thatís wrong. Now is the
critical time to work with government, health regulators,
buyers and the media on how such incidents are handled in
the future. We have to be completely alert that what
happened to the tomato people is possible.î
Walter Kates, director of the labor relations division of
the Florida Fruit & Vegetable Association, Maitland, updated
growers on immigration reform situation in Washington, D.C.
He noted proposed changes in the H-2A program involving
housing could aid Florida growers.
Despite any potential positive reforms, the issue remains
contentious, Kates said.
ěI donít care who is elected president,î he said. ěWe, in my
opinion, wonít see any comprehensive reform legislation
passed, at least for the first term. It has become such an
emotional issue and is very divisive. A group over here
wants the borders closed while the group that wants amnesty
refuses to have any guest worker program. Itís just a real
mess, aside from the emotional side of it.î
The 26th yearly conference attracted 315 participants, said
Sue Harrell, the associationís director of marketing.
National Post
Editorial Board: Listeriosis outbreak points at a broken
system
28.aug.08
National Post
Kelly McParland
http://network.nationalpost.com/np/blogs/fullcomment/archive/2008/08/28/national-post-editorial-board-listeriosis-outbreak-points-at-a-broken-system.aspx
The listeriosis outbreak that began with tainted meats
processed at one of Maple Leaf Foodsí Toronto facilities is
undoubtedly a tragic event. Contaminated meat has been
conclusively linked to 29 cases of illness, including 15
deaths, in Ontario, B.C., Saskatchewan and Quebec. As the
death toll rises and class action lawsuits against Maple
Leaf pick up steam, we must apportion the blame for this
incident where it is merited ó both to Maple Leaf and to the
federal government.
Changes to the way food inspection takes place in this
country appears to be a major factor in this outbreak. Food
inspectors, including the one responsible for the Toronto
plant, are simply stretched too thin to perform their jobs
properly. In March, the Canadian Food Inspection Agency
(CFIA) introduced a new compliance verification system that
imposed more uniform standards, but also created a larger
administrative burden for its inspectors, thereby limiting
their time performing on-site inspections. When inspectors
feel forced to choose between ědropping the paper workî and
ědropping the inspection work,î you have a broken system.
Federal Health Minister Tony Clement has been surprisingly
absent from the public eye during the crisis, choosing
instead to travel to Denver for the Democratic National
Convention. His response ó that he is ěavailable all hours
of the day and nightî ó hardly inspires confidence.
Leadership in a crisis cannot be delivered via BlackBerry.
Maple Leaf Foodsí excellent post-outbreak performance ó the
company followed health officialsí recommendations in a
timely fashion, issued a sweeping meat recall, shut down its
Toronto plant at a cost of $20-million, issued multiple
apologies and acted in an open, forthcoming manner ó does
not erase its culpability. Listeria is a commonly found
bacterium and only causes illness when present in large
quantities. The fact that significant amounts of the
bacteria ended up in its meat products means that something
went seriously awry.
Several class-action lawsuits have already been filed
against Maple Leaf Foods ó potentially resulting in
settlements in the billion-dollar range. Surely those who
have lost relatives or experienced serious illness
themselves deserve compensation.
Stephen Harper has declared that the outbreak demonstrates
that ěitís necessary to reform and revamp our food and
product inspection regimes.î Whatever the proposed
solutions, fixing this mess cannot consist merely of
delegating responsibility to the food industry. When it
comes to keeping the Canadian food supply safe, a
combination of public inspection and private responsibility
is essential. The CFIA must be given the resources to do its
job, and the private sector must learn from Maple Leafís
mistakes.
Some key
dates in the development of the cross-CANADA listeriosis
outbreak
28.aug.08
The Canadian Press
http://canadianpress.google.com/article/ALeqM5hXT2A03u-PgHBvgJQNCMp-Nd2seg
TORONTO ó June 2: Earliest date from which meat prepared at
Maple Leaf Foods plant in north Toronto later begins to fall
under suspicion of Listeria contamination.
Mid-July: Two people living at the same Toronto nursing home
die and are diagnosed with a similar bacterial infection.
Ontario health officials begin actively investigating cases
of people falling ill.
Aug. 5: Samples taken from Toronto nursing home test
positive for listeriosis.
Aug. 6: Canadian Food Inspection Agency notified of the
results of Toronto sample testing; returns to nursing home
to collect additional samples of meats and cheese.
Aug. 13: Maple Leaf notifies distributors they are under
investigation; remaining inventory of Sure Slice roast beef,
corned beef and Black Forest ham is put on hold.
Aug. 14: CFIA officials consult with public health officials
in Toronto, who in turn tell hospitals and long-term care
facilities to stop serving certain meat products and begin
collecting additional samples.
Aug. 16: CFIA officials meet with Health Canada and
recommend a recall.
Aug. 17: Two specific ready-to-eat products produced at
Toronto plant - Sure Slice roast beef and corned beef - are
recalled.
Aug. 19: Tests on recalled products come back positive;
Maple Leaf prepares to expand recall.
Aug. 20: Federal officials confirm one death, 16 other cases
linked to listeriosis outbreak. Products from two more Maple
Leaf production lines are recalled, bringing total to 23.
Toronto plant at the heart of the recall is shut down; Maple
Leaf projects cost of recall at about $2 million.
Aug. 22: Officials confirm listeriosis associated with the
outbreak caused the deaths of two elderly women in Ontario,
bringing official death toll to three. Health officials in
B.C. report death linked conclusively to outbreak strain of
listeriosis, but death is later reclassified as "under
investigation." Royal Touch Foods recalls Shopsy's Reuben
sandwich, which contains recalled meat.
Aug. 23: Officials confirm link between outbreak and Maple
Leaf products produced in Toronto. Maple Leaf chief
executive Michael McCain issues abject apology, describes
crisis as "the toughest situation we've faced in the 100
years of this company's history."
Aug. 24: As a precaution, Maple Leaf expands the recall to
include all 220 products produced at the plant at an
estimated cost of about $20 million. Television commercial
featuring McCain's apology begins to air.
Aug. 25: Public Health Authority of Canada officials say six
deaths in Ontario conclusively caused by outbreak strain of
listeriosis, with six others - five in Ontario, one in B.C.
- under investigation. Lucerne Foods announces recall of
some Mac's and Safeway sandwiches across Western Canada,
after some sandwich meat was named in Maple Leaf's latest
recall.
Aug. 26: Prime Minister Stephen Harper speaks on the
outbreak for the first time, defending Conservative
government's handling of the file. Atlantic Prepared Foods
Ltd. and Metro Ontario Inc. recall several sandwich products
sold in Maritimes and Ontario.
Public Health Authority of Canada officials say numbers of
deaths under investigation up to nine from previous six,
with 29 confirmed cases nationwide.
Aug. 27: Frances Clark, 89, of Madoc, Ont., becomes first
victim of Listeria outbreak identified. Clark died on Aug.
25 in hospital.
Public Health Authority of Canada officials reduce the
number of deaths conclusively caused by the outbreak strain
of listeriosis to five from six.
The Canadian Food Inspection Agency and Costco Wholesale
Canada Ltd. recall two products that contain a ready-to-eat
deli meat product previously recalled by Maple Leaf.
The CFIA recalls Cooked Ham and Salami sandwiches sold in
Sobeys, Foodland and IGA stores in Ontario because they may
contain a ready-to-eat deli meat product previously recalled
by Maple Leaf.
Aug. 28: Public Health Authority of Canada officials raise
number of deaths conclusively caused by the outbreak strain
of listeriosis to eight from five. Twenty-nine cases have
been conclusively linked to the outbreak, and an additional
36 suspected cases remain under investigation.
'Eat meat and
die!' warning drives home lifesaving message
28.aug.08
People for the Ethical Treatment of Animals (PETA)
Lindsay Rajt 757-622-7382
http://www.peta.org/mc/NewsItem.asp?id=11877
Toronto -- In the wake of a deadly listeria outbreak that
has been traced to deli meat and is suspected of killing as
many as 15 people, PETA is seeking to display a billboard so
blunt and accurate that it could shock people into
permanently chucking their ham and salami and filling their
refrigerators with healthy and humane vegetarian fare.
Behind the billboard's attention-grabbing headline "Eat Meat
and Die!" is a lighter-coloured text that lists some of the
deadly consequences of meat: "Listeria, E. coli,
Campylobacter." The ad steers people to PETA's Web site
GoVeg.com for healthy eating tips, information on food-borne
illness and other diseases, and vegetarian recipes.
More than 570,000 kilograms of meat have recently been
recalled in response to the outbreak that has affected
people in Ontario, British Columbia, Saskatchewan, and
QuČbec.
Such incidents highlight one of PETA's beefs with meat:
Besides causing immeasurable suffering for the animals who
are raised on filthy factory farms and killed in frightening
and painful ways for a fleeting taste of their flesh, meat
can also be deadly to consumers. The threat of listeria, E.
coli, campylobacter, and other bacterial infections is only
the beginning. Eating meat is linked to Canada's top killer
diseases, including heart disease, cancer, stroke, diabetes,
and obesity. Meat-eaters are four times more likely to be
obese as vegetarians are, and they are 10 times more likely
to suffer from heart disease. A low-fat vegetarian diet has
been proved to reverse heart disease.
"Listeria is but one symptom of an incredibly cruel and
literally sickening industry," says PETA President Ingrid E.
Newkirk. "Our message is, 'Eat meat and die, or go
vegetarian and live.' The only way to make meat safe is to
throw it out."
For more information or to view the billboard, please visit
blog.PETA.org or click here.
http://blog.peta.org/archives/2008/08/attack_of_the_k_1.php
SPAIN probes
possible fourth human case of mad cow disease
27.aug.08
AFP
http://afp.google.com/article/ALeqM5j8g4ED89khVw3PN7Gi95ij7xjm7Q
MADRID -- Spanish health authorities said Wednesday they
were looking into the possibility that a woman who died last
week at a hospital in Leon suffered from the human variant
of mad cow disease.
If laboratory tests confirm the 64-year-old had
Creutzfeldt-Jakob Disease (CJD), the human variant of bovine
spongiform encephalopathy (BSE) or mad cow disease, it will
be the fourth death from the disease in Spain.
"We are currently carrying out tests at a laboratory in
Alcorcon to determine if the disease is Creutzfeldt-Jakob or
not," a health ministry spokesman told AFP.
CALIFORNIA:
Raw milk program has done great things for community
27.aug.08
The Daily Triplicate
http://www.triplicate.com/news/story.cfm?story_no=9943
Sarah Valley of Crescent City writes that the raw milk
program has done great things for both my family and this
community.
Over 20 years ago, my then 9-year-old daughter was stricken
with a very rare medical condition called Guillaine-Barre
syndrome. An ordinary virus, the same one that all her
friends and siblings had, had attacked her body very
differently and left her paralyzed from the neck down. She
plateaued just as they were about to put her on a
respirator.
For three months, I lived at Rogue Valley Memorial Hospital
with my daughter and 6-month-old son. It was an
excruciatingly painful experience and one I wouldn't wish
upon anyone, but having gone through this experience, and
the knowledge I gained from it, the last thing I would want
is for the cause of the illness to be misplaced.
There was no investigation into how my daughter became sick.
There was no need. It wasn't the virus that actually caused
her illness. It was a cruel trick that her own body had
played on her. The doctors told me that it was most likely
to attack someone with a very good immune system. My
daughter has since gotten better and is now a healthy mother
of two.
Now there is a lot of talk in the community that raw milk
was the cause of a case of Guillaine-Barre syndrome. I
cannot speculate on whether or not the campylobacter came
from the raw milk or some other source. There is no need. I
have been drinking raw milk for two years and educating
myself about its effects. Since I began drinking raw milk, I
have lost the pain in my hip joints and just feel better.
The raw milk program has done great things for both my
family and this community. I feel we should have the right
to make our own health choices. No one has decided that all
tomatoes should now be pasteurized. Cigarettes are still
sold everywhere, drugs are approved that have not been
tested long enough to examine the long-term effects, but for
some reason, the government feels that we should not be able
to purchase milk without killing every healthy organism in
it.
The Alexandres' dairy milk program is one that could be an
example for other dairy farmers. I appreciate the Alexandres
and all that they have done for me and my family.
US: Back to
school food safety tips for parents and students
28.aug.08
United States Department of Agriculture, Food Safety and
Inspection Service
http://www.fsis.usda.gov/News_&_Events/NR_082808_02/index.asp
Food Safety and Inspection Service:
Diane Van (301) 344-4777
Partnership for Food Safety Education:
Shelley Feist (202) 220-0651
WASHINGTON - It's time to pull out the backpacks and clean
the lunch boxes as children head back-to-school this month.
Packing safe lunches for school and for work is critically
important. Since September is also National Food Safety
Education MonthĆ, the U.S. Department of Agriculture and the
non-profit Partnership for Food Safety Education are
providing tips to help parents keep their children and
themselves healthy.
Parents are reminded to follow the Be Food Safe basic
practices of Clean, Separate, Cook and Chill to help reduce
their family's risk of foodborne illness. When packing
lunches to take to school or the office, keep the following
food safety tips in mind:
* Wash your hands with warm water and soap for at least
twenty seconds before you prepare food or after playing
outside, touching pets and using the bathroom. Sing "Happy
Birthday" twice while washing hands to make sure you are
washing long enough to send germs down the drain!
* Work on a clean surface. To prevent cross-contamination,
always use a clean cutting board. Use one cutting board for
fresh produce or bread and a separate one for meat, poultry
and seafood.
* Rinse fruits and vegetables under running tap water,
including those with skins and rinds that are not eaten. Dry
with a paper towel.
* If lunches are made at home the night before, keep them in
the refrigerator until it's time to go. Make sure the
refrigerator is 40 F or below at all times and use an
appliance thermometer to check the temperature.
* Use an insulated lunch box, with an insulated bottle for
hot foods or a frozen gel pack or a frozen juice box to keep
perishable foods cold.
* Wash insulated lunch totes or boxes with hot soapy water
after each use.
Smart students and parents never leave perishable foods out
at room temperature for more than two hours. Toss any
perishable food not eaten at lunchtime.
For free stuff for kids, teachers and parents
Parents and after-school providers are urged to help kids
learn about food safety by getting them involved in fun,
educational activities. Free work sheets, curriculum
materials and a handwashing poster are available at
www.fightbac.org.
Consumers with food safety questions can "Ask Karen," the
FSIS virtual representative available 24 hours a day at
AskKaren.gov. The toll-free USDA Meat and Poultry Hotline
1-888-MPHotline (1-888-674-6854) is available in English and
Spanish and can be reached from l0 a.m. to 4 p.m. (Eastern
Time) Monday through Friday. Recorded food safety messages
are available 24 hours a day.
FSnet is produced by the
International Food Safety Network at Kansas State
University, and is supported at the Gold Fork level by:
Marler Clark.
FSnet is supported at the Sterling Fork level by: CropLife
Canada, Ontario Ministry of Agriculture, Food and Rural
Affairs , New Zealand Food Safety Authority, Monsanto
Canada, and the Ontario Cattlemen's Association.
Fsnet is supported at the Silver-plate Fork level by: The
National Restaurant Association, Unilever, Sholl Group/Green
Giant Fresh, Feedlot Health Management Services, McDonald's,
and Syngenta Crop Protection Canada.
The Food Safety Network presents a unique opportunity to
bring together all those associated with agriculture and
food, to enhance the safety of the food supply. To provide
financial support to the Food Safety Network, please visit
http://www.foodsafety.ksu.edu/en/donations.php. For
information on collaboration or fee-for-service
opportunities, please contact Dr. Doug Powell:
dpowell@ksu.edu
To subscribe to the html version of FSnet, send mail to:
(subscription is free)
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For more information about the FSnet research program,
please contact:
Dr. Douglas Powell
associate professor
dept. diagnostic medicine/pathobiology
Kansas State University
Manhattan, KS
66506
cell: 785-317-0560
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dpowell@ksu.edu
http://www.foodsafety.ksu.edu
archived at
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