Category Archives: outbreak

FDA – Investigation of Illnesses: Morel Mushrooms (May 2023)

FDA

Product

Morel mushrooms are a type of edible mushroom that are commonly foraged from the wild and are sometimes cultivated for commercial sale. Morel mushrooms are generally considered safe to eat, but they may contain some toxins that can cause health problems. The toxins in morel mushrooms that may cause illness are not fully understood; however, using proper preparation procedures, such as cooking can help to reduce toxin levels.

The US Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) are assisting Gallatin City-County Health DepartmentExternal Link Disclaimer and the Montana Department of Public Health and Human Services (DPHHS) with an investigation of illnesses at a single restaurant in Montana. The restaurant temporarily closed following the illnesses and at this time, there does not appear to be any further risk to the public. Available epidemiological evidence indicates that imported cultivated morel mushrooms, consumed at a single Montana restaurant, were the likely source of illnesses.

Stores Affected

The morel mushrooms served at the restaurant in Montana were distributed to multiple states; however, at this time, this appears to be a localized issue and no illnesses have been identified outside of the single restaurant in Montana.

Symptoms of morel and other mushroom poisonings:

Symptoms depend on the type of mushroom consumed, the specific toxin and amount ingested. Symptoms can also vary depending on the individual who ate them.  

Investigation Status

Ongoing

Recommendation

While there appears to be no ongoing risk related to this investigation, the following are general safety tips related to morel and other wild-type mushrooms (this includes mushrooms that are traditionally wild and foraged but can also be cultivated). If you become ill after consuming any mushroom, please contact your healthcare provider and/or call the poison control help lineExternal Link Disclaimer at 1-800-222-1222.

Consumers, restaurants, and retailers:

Consumers should eat morel and other wild-type mushrooms at their own risk. Properly cooking morel mushrooms can reduce risk of illness, however there is no guarantee of safety even if cooking steps are taken prior to consumption. Anyone eating, selling, or serving morel mushrooms, or other wild-type of mushrooms, should exercise caution. There are varieties of poisonous wild mushrooms that look very similar to morel mushrooms. If you are preparing morels, you should confirm the identity of each mushroom, and consult with a knowledgeable expert as the poisonous species have been known to grow near edible species in the wild.  

If you are preparing morel or other wild-type mushrooms, you should inspect for any signs of spoilage as toxin presence and levels may be affected by freshness or lack thereof. Choose mushrooms that are dry and firm and avoid those that are bruised, discolored, or slimy. 

Mushrooms should be refrigerated at a temperature of 40° F or below, either in their original packaging or in breathable type packaging, such as a paper bag.

Harvesters and manufacturers:

Conditions in which wild-type mushrooms are packaged and stored can contribute to growth of harmful bacteria and toxins. Harvesters and manufacturers should pack mushrooms in breathable packaging to allow air flow through the container which will prevent growth of these pathogens.

Additional information on selecting, storing, and serving fresh produce, such as mushrooms, can be found on the FDA website.


Current Update

May 19, 2023

Per request from Gallatin City-County Health Department and the Montana (DPHHS), the FDA and CDC are assisting with an investigation of illnesses at a single restaurant in Montana. The restaurant temporarily closed following the illnesses and there does not appear to be any further risk to the public. Preparation and storage methods at the restaurant continue to be examined as part of the investigation into the cause of illnesses and this advisory will be updated as information becomes available.

As of May 15, 2023, the investigation has identified 50 ill people who ate at the restaurant between March 28 and April 17, 2023, of whom 44 people reported eating morel mushrooms. There have been three hospitalizations and two deaths associated with this incident. A sample of leftover mushrooms were collected from the restaurant and laboratory analysis determined that the sampled mushrooms were true morels.

Currently, no pathogen, toxin, pesticide, or heavy metal has been identified; however, state and local partners have collected consumer samples from the restaurant and testing and analysis are ongoing. Although epidemiological evidence indicates that morel mushrooms consumed at the restaurant are likely the cause of illnesses, mushroom poisonings can be difficult to diagnose as the exact chemical nature of some toxins found in wild-type mushrooms are currently unknown. 

USA – Boston Restaurant, Los Amigos Taqueria, Linked to Salmonella Outbreak

Outbreak News Today

kswfoodworld salmonella

According to the local media, a local restaurant chain has been shut down by the local health department due to “a slew of health violations” and “unsanitary working conditions that appear to be linked to a Salmonella outbreak in the area.”

The health department recommends that customers of the “Los Amigos Taqueria Brighton location between May 12 and May 18 to monitor themselves for symptoms of Salmonella infection, including fever, diarrhea, and abdominal pain, and to contact a healthcare provider for an evaluation and testing if appropriate.”

Health agents’ report said that “multiple rodent droppings” were also found on pineapple cans, bags of pinto beans, single-use beverage holders, and storage tables.

Research – Multistate Outbreak of Salmonella Thompson Infections Linked to Seafood Exposure — United States, 2021

CDC

In July 2021, the Colorado Department of Public Health and Environment (CDPHE) laboratory identified a cluster of five Salmonella enterica serotype Thompson isolates related to one another within one allele difference, using whole genome multilocus sequence typing (wgMLST). These five isolates, submitted to the public health laboratory as is routine process for confirmatory testing of Salmonella, were highly related to those identified in a 2020 multistate investigation, during which traceback was conducted for sushi-grade tuna and salmon; a common supplier was not identified. The 2021 investigation commenced on August 5, 2021, with five patients living in Colorado, and one each in Missouri, Washington, and Wisconsin. During August–December 2021, CDC, CDPHE, public health and regulatory officials in several states, and the Food and Drug Administration (FDA) conducted epidemiologic, environmental, and laboratory investigations of this multistate outbreak of Salmonella Thompson. Isolates were genetically related to one another and to 2020 isolates within zero to one allele difference. Implicated seafood products were traced to a single seafood distributor, in which the outbreak strain was identified through environmental sampling, and in which inspection identified inadequate sanitization and opportunities for cross-contamination of raw fish. The distributor issued a voluntary recall of 16 seafood items with high potential for contamination and completed remediation actions. This outbreak illustrated the importance of effective cleaning and sanitizing procedures and implementation of controls. When multiple products are recalled during an outbreak investigation, collaboration between public health agencies and implicated facilities can help provide food safety information to restaurants, retailers, and consumers, and to ensure disposal of all recalled products.

USA – Dave’s Sushi to reopen after sickening 50 with 2 dead – Morel Mushrooms suspect

Food Poison Journal

Gallatin City-County Health Department Rescinds Closure Order and Institutes New Health Officer Order with Corrective Actions Required Prior to Dave’s Sushi Reopening

Since being ordered to close on April 20, 2023, food samples – including salmon and morel mushrooms – from Dave’s Sushi have been collected and analyzed. To date, all samples have come back negative for a series of pathogens and toxins. A thorough investigation led by the Gallatin City-County Health Department, with support from the Montana Department of Public Health and Human Services (DPHHS), the Centers of Disease Control and Prevention (CDC), and the Food and Drug Administration (FDA), is still ongoing and it is known that this investigation may not be able to identify a specific pathogen/toxin as a source of the outbreak that impacted 50 people. Three individuals had severe outcomes, including hospitalizations, and the deaths of two individuals are being investigated after eating at the restaurant. The manner and cause of death for these two individuals will remain pending until autopsy and toxicology results are available.

USA – Cyclospora outbreak in Georgia prompts public health alert

Food Safety News

Officials in Georgia are investigating an outbreak of cyclospora infections in the northwest part of the state.

The Georgia Department of Public Health Northwest Health District has not released any numbers, but it is urging people with symptoms of cyclospora infection to seek medical treatment and report any confirmed infections to local public health officials.

Georgia public health officials say their investigation is ongoing and the number of cases is expected to increase.

Cyclosporiasis causes an illness that can result in prolonged gastrointestinal distress, including watery diarrhea with frequent, sometimes explosive, bowel movements that can last for weeks. In severe cases, cyclospora infection can require hospitalization.220px-Cyclospora_cayetanensis_stained

Research – Multistate Outbreak of Hepatitis A Virus Infections Linked to Frozen Organic Strawberries

CFI

Hepatitis A kswfoodworld

Hepatitis A is a very contagious liver infection caused by the hepatitis A virus (HAV), resulting in an inflammation of the liver.

The Centers for Disease Control and Prevention (CDC), state public health and regulatory officials such as the Washington State Department of Health (DOH), and the U.S. Food and Drug Administration are “investigating an outbreak of hepatitis A transmission linked to frozen organic strawberries imported from certain farms located in Baja California, Mexico, by a common supplier” (CDC, 2023).

India – 31 fall ill after attending funeral service ; food poisoning suspected

The Shillong Times

Nongpoh, May 12: Dozens of villagers from Nongladew village in Ri Bhoi district of Meghalaya fell ill after attending a funeral service in Mariampur under Goalpara District of Assam. As many as 41 villagers had attended the funeral rituals of their relative on May 9. However, on Wednesday night (May 10), 31 of them returned home and fell ill, prompting immediate action from health officials.

The villagers had consumed fish, potato, and dal during the funeral service, and many of them complained of illness when they returned home. While the exact cause of the illness is not known, the villagers suspect the fish, which they believe was poisoned, to be the reason for their condition

USA – RiverStone: 80 St. Vincent employees sickened by foodborne illness in Billings

KTVQ

RiverStone Health is investigating a large foodborne illness case with 80 people showing symptoms Friday.

RiverStone can’t confirm the source of the outbreak but says the possibly contaminated food was delivered to various St. Vincent Health Care facilities on Wednesday as part of National Nurses Day celebrations.

“A gastrointestinal illness has impacted a number of our caregivers. At this time, we believe that the illness is from an external source. We are partnering with RiverStone Health for the outbreak investigation,” St. Vincent leaders said in a statement.

USA – Possible Foodborne Illness Kills Two People in Montana – Lawsuit Filed on Behalf of Donna Ventura

Food Poisoning News

On April 30th, a 64 year old woman, Donna Ventura, died of a suspected foodborne illness. The county police officer reports that she was a regular at Dave’s Sushi restaurant. One week before, a 74 year old man named William Lewis also died of a foodborne illness. He was also a patron of Dave’s Sushi. The cause of death is currently under investigation, though morel mushrooms are suspected. While the two deaths have not been “directly” linked to the sushi restaurant, yet, at least three dozen other patrons of Dave’s Sushi have reported illnesses. The autopsy results will be available in 4-6 weeks, and toxicology results will be available in 2-6 months.

The restaurant has been closed for more than 2 weeks after receiving multiple complaints from more than 30 consumers falling ill after eating Dave’s Sushi. The FDA has focused its attention on morel mushrooms, sourced from China, as the source of the illnesses. Although it is not yet confirmed that these mushrooms were what caused the outbreak, this was an off-menu addition and only those who consumed the tainted product became ill – usually within 30 to 270 minutes post-consumption.

Research – Norway records rise in outbreaks in 2022

Food Safety News

The number of outbreaks and people sick in them in 2022 went up from the year before, based on new data from Norway.

A total of 34 foodborne outbreaks were reported in 2022, which is up from 23 and 25 outbreaks in 2020 and 2021 but lower than the 46 outbreaks in 2019.

Overall, 628 people were sick this past year with the largest incident affecting 100 people, according to a report published by the Norwegian Institute of Public Health (FHI). In the 25 outbreaks in 2021, 327 patients were recorded.

Eight norovirus outbreaks sickened 135 people in 2022. Five outbreaks with 148 cases were caused by Salmonella. Cryptosporidium and Yersinia were behind three each with 14 and 51 patients, respectively.

Ten people were sick in two Listeria outbreaks. One Campylobacter outbreak had six patients and one E. coli event affected seven people. The agent was unknown for 11 outbreaks with 257 cases.

Most foodborne outbreaks were reported in connection with restaurants, cafes and other catering establishments.