Category Archives: outbreak

 USA – Salmonella Typhimurium outbreak (reference # 1113) 

Food Poisoning News

kswfoodworld salmonella

As of November 16, 2022, a Salmonella Typhimurium outbreak (reference # 1113) has been identified in the United States with no known source as the cause of the outbreak. A total of 264 cases have been identified in connection with the outbreak, though the number of actual cases is thought to be much higher and the investigation remains ongoing. The Food and Drug Administration (FDA) is leading the investigation in collaboration with both federal, state, and local partners. The FDA is currently working vigilantly to find the source of the Salmonella Typhimurium outbreak and will update the public accordingly.

Viet Nam – 257 students hospitalized after school lunch – Suspected Food Poisoning

VN Express

257 students at a school in central Khanh Hoa Province were rushed to hospital after lunch after showing signs of food poisoning.

Following a Thursday lunch at Ischool, with over 900 students signing up for lunch, dozens of them began to show signs of stomachache, vomiting, diarrhea and fever, according to the Khanh Hoa Department of Health.

They were later rushed to multiple hospitals. As of Friday noon, five hospitals have received a total of 149 students. Their health is now stable.

The health department is still updating the data, and no final number of affected students has been made as some of them may not go to the hospital.

Pham Huu Binh, principal of the school which consists classes from first to 12th grades, said food samples of the lunch on Thursday have been sent to a medical center for analysis. The lunch consisted of rice, boiled chicken and sauces made from eggs and oil.

USA – CDC Investigation Notice – Listeria Outbreak Linked to Enoki Mushrooms

CDC

Listeria is especially harmful if you are pregnant, aged 65 or older, or have a weakened immune system. If you are in any of these groups, do not eat raw enoki mushrooms. Cook enoki mushrooms thoroughly to kill any foodborne germs.

Investigators are working to identify specific brands of enoki mushrooms that may be contaminated with the outbreak strain of Listeria. However, many brands of enoki mushrooms have been recalled since the 2020 Listeria outbreak linked to enoki mushrooms.

Fast Facts
  • Illnesses: 2
  • Hospitalizations: 2
  • Deaths: 0
  • States: 2
  • Recall: No
  • Investigation status: Active
Enoki mushrooms on a white background
Listeria in Enoki Mushrooms

Enoki mushrooms are white and have long, thin stems. They are often sold in a bunch with roots in sealed plastic packaging. They are popular in Japanese, Chinese, and Korean food, and they are almost always eaten cooked in soups, hot pots, and stir-fried dishes.

In 2020, CDC investigated the first known Listeria outbreak in the United States linked to enoki mushrooms. This outbreak resulted in three recalls of enoki mushrooms that were imported from Korea. Since then, the U.S. Food and Drug Administration (FDA) and public health officials from several states have been collecting samples of enoki mushrooms and found Listeria in many samples, resulting in more than 20 recalls of enoki mushrooms.

Source of the Outbreak

Information collected so far shows that enoki mushrooms are the likely source of these illnesses.

Both sick people reported eating enoki mushrooms or eating at restaurants with menu items containing enoki mushrooms. The outbreak strain was previously found in one sample of enoki mushrooms that FDA collected at import. However, to date, the firm associated with this sample has not been identified as a potential source of enoki mushrooms in this outbreak.

Investigators are working to identify specific brands of enoki mushrooms linked to these illnesses.

Sweden – At least 100 ill in Swedish Cryptosporidium salad outbreak

Food Safety News

water contamination

A rise in Cryptosporidium infections in Sweden has been attributed to contaminated salad by public health officials.

The Public Health Agency of Sweden (Folkhälsomyndigheten) said 101 cases of a certain type of Cryptosporidium parvum had been confirmed in 13 regions of the country.

Patients fell ill from Sept. 25 to Oct. 15 this year and women were more affected than men. Cases range from 4 to 86 years old with an average age of 42.

Link to salad
The agency added there are another 99 potential cases being investigated. The type of Cryptosporidium parvum involved is common so there could be several possible sources.

Local infection control units, the Swedish Food Agency (Livsmedelsverket) and Folkhälsomyndigheten investigated the increase in infections to find a source.

Analysis of information from patients on what they had eaten before becoming ill shows they ate mixed or bagged salad more often than a control group.

Salad has a short shelf life so health officials don’t think it is still available for sale but no products have been sampled.

Livsmedelsverket has looked into possible producers and growers but has been unable to find the likely source of infection.

As reported cases of Cryptosporidium have decreased and are at similar levels to previous years, officials believe the outbreak is over.

USA – FDA – Core Outbreak Table Update

 

 

FDA

What’s New

  • A new outbreak of Salmonella Typhimurium (reference #1113) in a not yet identified food has been added to the table and traceback has been initiated. There are currently 264 cases. The FDA is working closely with federal, state, and local partners to investigate multiple food items of interest to determine the source of this outbreak and will update the public when more information becomes available.
  • For the E. coli O157:H7 outbreak in a not yet identified food (reference #1121), the outbreak status has changed to “Ended”.

Research – Fatal Listeria outbreak linked to Scottish fish processor

Food Safety News

A deadly Listeria outbreak in the United Kingdom has been linked to one company but product testing has only found low levels of contamination.

Food Standards Scotland (FSS) and the Food Standards Agency (FSA) suspect the source of contamination to be a salmon-smoking processing factory in Scotland.

Food Standards Scotland wouldn’t name the company or answer questions about the incident from Food Safety News.

Instead, a spokesperson said: “This is an ongoing outbreak of Listeria monocytogenes and, as yet, no definitive source of contamination has been found. Investigations to determine the root cause continue. Investigations of any outbreaks of foodborne illness will comprise both patient questionnaires and sampling of products.

“Local authorities are responsible for working on mitigations with any implicated businesses, and FSS, alongside partners the UK Health Security Agency, Public Health Scotland, and the Food Standards Agency, have been involved in raising awareness of the outbreak with consumers, most recently with targeted messaging to vulnerable groups.”

There have been 14 confirmed Listeria monocytogenes cases in just under two years. At least 10 sick people are above 65 years old, and one was a pregnant woman.

Three people older than 65 have died and for two Listeria monocytogenes was a contributory cause of death. All cases had underlying health conditions.

Of the linked cases of listeriosis since October 2020, eight have been identified since January 2022. The majority of them reported eating ready-to-eat smoked fish.

Research – EU and UK record travel-related Shigella infections

Food Safety News

A multi-country Shigella outbreak in Europe has been linked to stays at some hotels in Cape Verde.

Confirmed Shigella sonnei cases have been reported in the Netherlands, Denmark, France, Germany, Portugal, and the United Kingdom.

The European Centre for Disease Prevention and Control (ECDC) said there is no information about the source of infection but given the increase in travel during the coming holiday season, new cases are likely.

However, Holiday Claims Bureau and Hudgell Solicitors in the UK have noted complaints of illness and poor hygiene standards from holidaymakers, suggesting the source could be contaminated food or water. Holiday Claims Bureau said it had been informed of sick people testing positive for Shigella.

Travelers have described symptoms such as diarrhea, vomiting, stomach cramps, and pains, which in some cases lasted until they returned home.

Anne ThomsonHudgell Solicitors’ travel litigation executive, said people can suffer as a result of a change in diet and climate.

“However, when we are alerted to situations where a number of holiday guests are affected by similar symptoms, particularly when they are not part of the same traveling group, we feel an investigation is needed to contain any wider outbreak and prevent future problems,” she said.

“Holidaymakers becoming ill having only ever eaten at the specific hotel they are staying at, and concerns raised by guests over standards of hygiene and cleanliness throughout premises, and not just in dining areas, are often red flags to potential underlying problems.”

Research – Attribution Analysis of Foodborne Disease Outbreaks Related to Meat and Meat Products in China, 2002–2017

Mary Anne Liebert

Abstract

kswfoodworld

This study aimed to understand the epidemiological characteristics of foodborne disease outbreaks related to meat and meat products in China from 2002 to 2017. Data collected from the National Foodborne Diseases Surveillance System and searched databases were analyzed. From 2002 to 2017, China reported 2815 outbreaks caused by foodborne diseases related to meat and meat products, resulting in 52,122 illnesses and 25,361 hospitalizations, and 96 deaths. Outbreaks were markedly seasonal and concentrated from May to September, accounting for 66.93%. Outbreaks were concentrated mainly in China’s eastern coastal and southern regions. Unidimensional attribution analysis revealed that livestock meat was the most commonly implicated food category causing the outbreaks, accounting for 28.67%. Bacteria were the most common pathogenic cause of outbreaks, accounting for 51.94%. Clostridium botulinum was the most common pathogenic cause of death, accounting for 34.38%. Improper processing was the most common contributing factor, accounting for 27.89%. Households were the most common food preparation location causing the outbreak, accounting for 34.39%. Two-dimensional and multidimensional attribution analysis found that Salmonella contamination occurred in different locations and regions, mainly caused by various contributing factors and improper processing. Nitrite poisoning is caused by improper processing in households in East China. Bacterial causes were the commonest agents associated with foodborne diseases related to meat and meat products, and improving the safety and quality of meat and meat product should be a priority.

USA – Cooper’s Hawk Duval County Cyclospora Outbreak Attributed to Contaminated Basil

Food Poisoning News

The final investigation of the 2019 Cyclospora outbreak in Duval County, Florida found the most likely cause of the Cooper’s Hawk outbreak was serving food containing contaminated fresh basil – ironically, to-date Cooper’s Hawk continues to deny it served contaminated food. The Florida Department of Health of Duval County (DOH-Duval) first announced the potential outbreak on June 22, 2019 after one of Cooper’s Hawks own restaurant managers notified them of an estimated 20 employees who had became sick with gastrointestinal illness beginning on June 18, 2019. After the first report of employee infections, reports of illnesses in customers came pouring in, with a total of 153 gastrointestinal illnesses.

USA – FDA Core Investigations of Foodborne Illness Outbreaks

FDA

What’s New

  • A new outbreak of Listeria monocytogenes (reference #1127) in a not yet identified food has been added to the table and traceback has been initiated.