Category Archives: E. coli

Costco E coli outbreak linked to celery and onion used in chicken salad – CDC


19163An outbreak of E. coli O157:H7 infections linked to rotisserie chicken salad sold at Costco stores may have been caused by contamination of celery and onions used in making the salad, according the US Centers of Disease Control and Prevention

The presence of the bacteria was discovered in sample of celery and onion diced blend collected from a Costco store by the Montana Public Laboratory.

The blend was used to make the Costco rotisserie chicken salad eaten by ill people in this outbreak.

Preliminary results indicated the presence of E. coli O157:H7. Laboratory testing is ongoing to isolate the E. coli bacteria and then determine the DNA fingerprint to confirm the link.

As a result of the preliminary laboratory results, on November 26, 2015, Taylor Farms Pacific, Inc., voluntarily recalled multiple products containing celery because they may be contaminated with E. coli O157:H7.

Escherichia coli O157:H7 is a bacterium that causes a diarrheal illness often with bloody stools. Although most healthy adults can recover completely within a week, some people can develop a form of kidney failure called Hemolytic Uremic Syndrome (HUS).

HUS is most likely to occur in young children and the elderly. The condition can lead to serious kidney damage and even death.


E coli outbreak linked to Costco chicken salad spreads to 7 states


19163As of November 23, 2015, 19 people in seven states have been reported to be infected with a strain of E coli that has been linked to chicken salad sold at Costco, the US Centers for Disease Control and Prevention reported Tuesday. The strain is known as known as Shiga toxin-producing Escherichia coli O157:H7 (STEC O157:H7).

Five have been hospitalized, and 2 have developed hemolytic uremic syndrome, a type of kidney failure. No deaths have been reported, the CDC said.

Evidence available at this time suggests that rotisserie chicken salad made and sold in Costco Wholesale stores in several states is a likely source of this outbreak.

Fourteen of 16 people purchased or ate rotisserie chicken salad from Costco in the week before illness started.

The ongoing investigation has not identified what specific ingredient in the chicken salad is linked to illness.

Costco reported to public health officials that the company had removed all remaining rotisserie chicken salad from all stores in the U.S. and stopped further production of the product until further notice.

Consumers who purchased rotisserie chicken salad from any Costco store in the United States on or before November 20, 2015, should not eat it and should throw it away.

Even if some of the rotisserie chicken salad has been eaten and no one has gotten sick, throw the rest of the product away.

This product has a typical shelf life of 3 days and is labeled “Chicken Salad made with Rotisserie Chicken” with item number 37719 on the label.


Costco chicken salad connected to King County E. Coli case


E coli - Photo NIAIDBy Lindsay Bosslet
Public Health – Seattle & King County

The Washington State Department of Health and the Centers for Disease Control and Prevention (CDC), in conjunction with local health officials, are currently investigating a cluster of E. coli O157:H7 cases that has been connected to Costco chicken salad.

One case has been reported in Washington state. This person, a King County resident, is a teen male who was not hospitalized. He reported eating the implicated product, which he purchased from the Shoreline Costco.

For more information on this outbreak, read this press release from Washington State Department of Health.

If you purchased this product (number 37719) from a Washington Costco, discard it and do not eat it.

People who have eaten this product and feel ill should consult with their health care provider. People usually get sick 2-8 days after getting E. coli.

PHOTO: E coli courtesy of National Institute for Allergy and Infectious Disease


Costco takes chicken salad off Washington shelves due to E. coli


Escherichia Coli_NIAID E Coli BacteriaFrom Washington State Department of Health

Chicken Salad made with Rotisserie Chicken” from Costco has been connected with at least one case of E. coli O157:H7 in Washington. Consumers who purchased this product – item number 37719 – from any Washington Costco location should discard it.

The Department of Health, along with the Centers for Disease Control and Prevention (CDC) and other western states, are investigating E. coli illnesses from chicken salad purchased from various Costco stores in late October. Washington has confirmed one case of E. coli O157:H7 from King County, who became ill in late October. This confirmed case was not hospitalized.

Others states with confirmed E. coli cased linked to Costco chicken salad include Colorado, Montana, and Utah.

“We take E. coli very seriously in Washington,” said State Epidemiologist Dr. Scott Lindquist, “and we are working with CDC and state partners to determine the source.”

Others states with confirmed E. coli cased linked to Costco chicken salad include Colorado, Montana, and Utah. In addition to CDC, the U.S. Food and Drug Administration and U.S. Department of Agriculture are working with Costco to determine the source of the contamination. Continue reading


Testing fails to find source of E. coli outbreak linked to Chipotle restaurants


chipotleFrom the Washington State Department of Health

Food safety and disease investigation staff from the Washington State Department of Health are still working to investigate the cause of an outbreak of illnesses linked to 27 cases of E. coli O26 illnesses in Washington.

The first round of test results did not find E. coli bacteria in food samples taken from several Chipotle restaurants according to officials at the Food and Drug Administration.

EscherichiaColi_NIAIDThe 27 cases, connected in this outbreak include people from Clark (11), Cowlitz (2), Island (2), King (6), Skagit (5), and Whatcom (1) counties.

Ten of these people were hospitalized; no Hemolytic Uremic Syndrome (HUS) complications or deaths have been reported. Most people who are ill report eating at Chipotle restaurants before getting sick.

In Washington, the most recent case reported eating at Chipotle on October 24. While health officials believe the risk for new exposures is very low, the number of cases in the outbreak may rise or fall as pending lab tests determine if more ill people have this specific strain of E.coli infection. In Washington, four tests are still in progress. Continue reading


E. coli outbreak likely linked to Chipotle restaurants grows


chipotleFrom Public Health – Seattle & King County

The investigation into an outbreak of E. coli illnesses that may be related to Chipotle restaurants in Washington and Oregon has grown from 19 reported Washington cases to 25 as of today.

The Washington State Department of Health continues working closely with local, state, and federal partners on a disease investigation to learn the extent of the outbreak and possible sources of E. coli bacteria.

In Washington, residents of Clark (11), Cowlitz (2), Island (2), King (6), and Skagit (4) counties have been reported as outbreak cases.

Of the 25 cases, 23 reported having been at Chipotle restaurants before getting sick. Nine of the Washington residents were hospitalized. Cases range in age from five-to-60. No deaths have been reported in this outbreak.

There are five Washington restaurants associated with this outbreak: Hazel Dell, 7715 NE 5th Avenue, Suite 109, in Vancouver; 1404 Broadway Avenue and 4229 University Way NE in Seattle; 512 Ramsey Way 101 in Kent; and 1753 S. Burlington Blvd. in Burlington.

The Oregon Department of Public Health has information on cases in that state. The state health agencies and local health partners are coordinating with the federal Centers for Disease Control and Prevention and the Food and Drug Administration on the investigation.

Chipotle restaurants are under a voluntary closure. The Washington Department of Health Food Safety Program staff are working to establish criteria for the restaurants in this state to reopen.


19 E. coli infections linked to Chipotle restaurants


chipotleFrom Washington State Department of Health

A cluster of E. coli cases led to the voluntary closure of many Chipotle restaurants this week.

The restaurants under investigation are linked to 19 cases of E. coli illnesses in Washington.

Three more cases were reported from Oregon, also associated with Chipotle restaurants.

Seven of the Washington patients and one Oregon patient were hospitalized; there have been no deaths.

Four cases were reported in King County, nine in Clark County, one in Cowlitz County, and five in Skagit County. Three cases were reported in Oregon residents.

While the outbreak appears to be linked to food served at Chipotle restaurants, the food or other source of contamination hasn’t yet been determined and remains under investigation. Continue reading


E coli outbreak may be linked to Chipotle restaurants


Health officials say 19 E. coli cases may be linked to Chipotle restaurants in Wash. and Ore.

chipotleBy Hilary N. Karasz 
Public Health – Seattle & King County

Health officials are currently investigating a multi-state outbreak of E. coli that may be linked to Chipotle restaurants.

Four cases were reported in King County. While the outbreak is currently under investigation, preliminary information is that fourpeople in King County have become ill, two teenagers and two people in their 20s.

One of the teens and one of the people in his/her 20s were hospitalized. In King County, all four ill people ate at a Chipotle between October 19 and 23.

While the outbreak appears to be linked to food served at Chipotle restaurants, the food or other source of contamination hasn’t yet been determined and remains under investigation.

Chipotle restaurants in Washington have voluntarily closed until further information on the cause of the outbreak is available.

Chipotle restaurants in Washington have voluntarily closed until further information on the cause of the outbreak is available.

The type of E. coli implicated in this outbreak has not been confirmed but is a strain of Shiga toxin-producing E. coli similar to E. coli O157:H7. It can cause bloody diarrhea, abdominal cramps, fever, and vomiting. It can sometimes result in severe, life-threatening illness and death. In general, anyone with bloody diarrhea should see a healthcare provider.

Learn more by reading the Washington State Department of Health and the Oregon Health Authority news releases.

Follow Public Health Insider for updates next week and beyond.


Can Yelp help track food poisoning outbreaks?


yelp-logoBy Barbara Feder Ostrov

When a Shigella outbreak at a San Jose, Calif. seafood restaurant sickened dozens of people last weekend, Yelp reviewers were on the case – right alongside public health officials.

“PLEASE DO NOT EAT HERE!!!!” Pauline A. wrote in her Oct. 18 review of the Mariscos San Juan #3 restaurant. “My sister in and brother-in-law along with his parents ate here Friday night and all four of them ended up in the hospital with food poisoning!!!”

Research suggests that Yelp reviews may act as an early warning system or identify potential patients that public health officials might not otherwise have found in their food-borne illness investigations.

That same day, the Santa Clara County Public Health Department shut down the restaurant. Two days later, officials announced that more than 80 people who had eaten there had become acutely ill, with many requiring hospitalization. Twelve diners went to intensive care units.

Since then, the outbreak has grown to  more than 90 cases in Santa Clara and Santa Cruz counties. Continue reading


Want to know what diseases your pet can give you?


From the US Centers for Disease Control and Prevention

Good for you?

To observe World Animal Day (Oct 4) the US Centers for Disease Control and Prevention Has launched a redesigned Healthy Pets Healthy People website, with expanded information about diseases people can catch from pets, farm animals, and wildlife.

Users can now search alphabetically by animal and learn which zoonotic diseases they may carry. It is a unique “one-stop shop” where people can learn simple actions to protect themselves – and their pets.

The redesigned website offers:

  • An alphabetized list and description of diseases that can spread from animals to humans.
  • A list of animal species with the description of diseases associated with the animal.
  • Specific groups of people that may be more susceptible to diseases from animals.
  • Tips for preventing illnesses acquired from pets and other animals.
  • Detailed information about the health benefits of owning a pet.

Continue reading


Public health officials investigate E. coli outbreak


Six people have been infected with the same strain of E. coli (three have been hospitalized) Everyone who became sick had something in common – they ate food prepared by, a local food vendor called Los Chilangos.

From Public Health – Seattle & King County

Escherichia Coli_NIAID E Coli Bacteria

E coli / NIAID

Public Health is currently investigating an outbreak of E. coli 0157 – one of the most serious foodborne illnesses you can contract. Our thoughts are with the families affected by this outbreak, and we appreciate the support of the community as we work to protect the health of the public.

A person can get an E. coli O157 infection from many different sources: by eating or drinking something contaminated with animal or human fecal matter, through animal contact, or through contact with another person who has an E. coli infection.

One of our responsibilities at Public Health is to track down these sources. When there are illnesses associated with any one of the more than 12,000 food establishments in the county, we search for contaminated products, ill food workers, or improper food handling.

We follow specific steps to find clues that help us pinpoint the source(s) that may be linked to illness. Here are key steps of this current investigation. Continue reading


Fairs and petting zoos are in season: tips to avoid animal-spread illnesses

Rooster looking through the wires of a cage

Photo by dragonariaes

From the Washington State Department of Health

Millions of people go to agricultural fairs and petting zoos this time of year, and children of all ages love to be around the animals.

Taking a few safety precautions can help reduce the chance of getting sick after spending time with animals or their surroundings.

“We encourage people to enjoy their local fairs and petting zoos,” said State Health Officer Dr. Kathy Lofy. “Just make sure your visit is a safe one. Washing your hands is the number one way to do just that.”

Handwashing is the most effective way to reduce chances of getting sick. The spread of illnesses from animals, such as those caused by E.coli and Salmonella, are commonly linked to hand-to-mouth contact. Continue reading


Waterborne diseases pose a risk during swimming and other outdoor fun


From the Washington State Department of Health

infant-swimmingSwimming pools, beaches, lakes, and streams provide an opportunity to cool off during a summer that’s warmer than usual.

Yet germs in the water can make people sick, especially young children, elderly people, and people with weak immune systems.

Chlorine in swimming pools kills most germs, but some types of germs can resist chlorine for many days.

Germs that can cause waterborne illness include Cryptosporidium, Giardia, Shigella, E. coli, and norovirus. In the past three years, three outbreaks of waterborne illness have been reported to state health officials – two in lakes and one in a swimming pool.

“It’s important to do all we can to protect ourselves and others from waterborne diseases when we take a dip into local pools, lakes, and rivers,” said State Epidemiologist for Communicable Disease Dr. Scott Lindquist. “Stay out of the water if you’re ill or have recently had diarrhea.” Continue reading


Watcom County E coli outbreak linked to fairgrounds dairy barn


Escherichia Coli_NIAID E Coli BacteriaThe bacteria that sickened 25 people in Whatcom County has been traced to a dairy barn on the   Northwest Washington Fairgrounds, an investigation by county, state and federal health officials has concluded.

“All of the ill people either attended the Milk Makers Fest between April 21 and 23 at the Northwest Fairgrounds; helped with the event between April 20 and 24; or were close contacts of people associated with the event,” according to a final report on the outbreak released by the Whatcom County Health Department.

“Most of the ill people were children, including older children who helped with the event. More than 1,000 children from primary schools in Whatcom County attended the event on these days,” report said..

The bacteria, a virulent form of the bacteria Esherichia coli, called Shiga toxin-producing E. coli O157:H7, can cause severe diarrhea and in some cases a condition called hemolytic uremic syndrome, or HUS, that can lead to kidney failure. Contamination of the fairgrounds most likely occurred before the Milk Makers Fest.

Investigators identified 25 people confirmed cases:

  • 9 of these cases were considered secondary cases (the ill person didn’t attend the event but had close contact with someone who did attend).
  • 10 people were hospitalized.
  • 6 people developed HUS.

No one died as a result of the outbreak.
Continue reading