Category Archives: Microbiological Risk Assessment

USA – FDA expands enoki mushrooms import alert from South Korea, adds China

Food Safety News

On March 1, the FDA announced that it is expanding an import alert issued last July for all enoki mushrooms imported from the Republic of Korea to now also include enoki mushrooms from China for detention without a physical examination at U.S. borders (DWPE) to further protect public health.

Previously, this import alert only included enoki mushrooms from the Republic of Korea. From Oct. 2020 through Feb. 2023, state public health authorities conducted a sampling of enoki mushrooms from retail locations. Multiple state samples detected L. monocytogenes, which led to 18 recalls of enoki mushrooms in the U.S. since 2021. Eight of the recalls were linked to enoki mushrooms grown in the Republic of Korea, and 10 from China, were confirmed via labeling, traceback, or whole genome sequencing (WGS).

During this time, FDA sampled and analyzed 127 shipments of enoki mushrooms imported from China and found 18 to be violative, representing a violation rate of more than 14 percent. This effort identified 15 firms with violative products out of at least 37 declared firms that had exported enoki mushrooms from China to the U.S.

USA – New Hepatitis A outbreak discovered; other outbreak investigations continue

Food Safety News

Federal officials have identified a new outbreak of hepatitis A infections suspected to be from a food source.

The Food and Drug Administration reports that it has begun product traceback efforts, but the agency has not named the product or products being traced.

As of March 1 there have been nine patients identified. The FDA has not reported where the patients live or their ages.

Hepatitis A can be transmitted when food handlers have contaminated hands. This contamination usually comes from microscopic amounts of feces. Thorough hand washing is one of the best ways to prevent transmission of the disease. Food surfaces can become contaminated as well as foods and beverages.

USA – FDA Advises Restaurants, Retailers and Consumers to Avoid Recalled Wild Harvest Oysters from Harvest Area FL-3012, Cedar Key, Florida Potentially Contaminated with Salmonella

FDA

Audience

  • Restaurants and food retailers that have received shipments of wild harvest oysters from harvest area FL-3012, Cedar Key, Florida, harvested between December 16, 2022, and February 24, 2023.
  • Consumers who have recently purchased oysters from area FL-3012 sold in Alabama, Florida, and Georgia.

Product

  • Wild harvest oysters from FL-3012, Cedar Key, Florida, harvested between December 16, 2022, and February 24, 2023. The oysters were distributed to restaurants and retailers in Alabama, Florida, and Georgia It is possible that additional states received these oysters through further distribution.
  • Packaged oysters include harvest area information on the packaging.

Purpose

The FDA is advising consumers not to eat, and restaurants and food retailers not to sell, and to dispose of recalled wild harvest oysters from FL-3012, Cedar Key, Florida, harvested between December 16, 2022, and February 24, 2023, due to possible Salmonella contamination. These oysters were sold in Alabama, Florida, and Georgia. Consumers who purchased oysters after December 16, 2022, should check the packaging to see if they were wild harvest oysters from FL-3012, Cedar Key, Florida. Contaminated oysters can cause illness if eaten raw, particularly in people with compromised immune systems. Food contaminated with Salmonella may look, smell, and taste normal. Consumers of these products who are experiencing symptoms of salmonellosis should contact their healthcare provider, who should report their symptoms to their local Health Department.

Summary of Problem and Scope

The Florida Department of Health and the state health departments of Georgia and Alabama have detected a Salmonella outbreak associated with the consumption of raw oysters harvested from shellfish harvesting area FL-3012 in Cedar Key, Florida. To date, there have been 8 cases linked to this outbreak within Florida, Georgia, and Alabama. On February 24, 2023, the Florida Department of Agriculture and Consumer Services issued an emergency closure order for wild harvest oysters from harvest area FL-3012 and initiated a recallExternal Link Disclaimer of wild harvest oysters from harvest area FL-3012 in Cedar Key that were harvested from December 16, 2022, to February 24, 2023. On February 24, the State of Florida also notified the Interstate Shellfish Sanitation Conference of the closure and recall. Florida Department of Health posted an advisory bulletin on February 28. 2023.

FDA Actions

The FDA is issuing this alert advising consumers not to eat, and restaurants and food retailers not to sell, recalled wild harvest oysters from FL-3012, Cedar Key, Florida, harvested between December 16, and February 24, 2023, due to possible Salmonella contamination. The FDA will assist with and coordinate interstate notification efforts as necessary pending receipt of shellfish distribution information.

Symptoms of Salmonellosis

Most people infected with Salmonella will begin to develop symptoms 12 to 72 hours after infection. The illness, salmonellosis, usually lasts four to seven days and most people recover without treatment.

Most people with salmonellosis develop diarrhea, fever, and abdominal cramps. More severe cases of salmonellosis may include a high fever, aches, headaches, lethargy, a rash, blood in the urine or stool, and in some cases may become fatal. The U.S. Centers for Disease Control and Prevention estimated that approximately 450 persons in the United States die each year from acute salmonellosis.

Due to the range in severity of illness, people should consult their healthcare provider if they suspect that they have developed symptoms that resemble a Salmonella infection.

Recommendations for Restaurants and Retailers

Restaurants and retailers should not sell the potentially contaminated oysters. Restaurants and retailers should dispose of any potentially contaminated products by throwing them in the garbage or returning to their distributor for destruction.

Restaurants and retailers should also be aware that oysters and other filter-feeding bivalve molluscan shellfish may be a source of pathogens and should control the potential for cross-contamination of food processing equipment and the food processing environment. They should follow the steps below:

  • Wash hands with warm water and soap following the cleaning and sanitation process.
  • Retailers, restaurants, and other food service operators who have processed and packaged any potentially contaminated products need to be concerned about cross-contamination of cutting surfaces and utensils through contact with the potentially contaminated products.
  • Retailers that have sold bulk product should clean and sanitize the containers used to hold the product.
  • Regular frequent cleaning and sanitizing of food contact surfaces and utensils used in food preparation may help to minimize the likelihood of cross-contamination.

Singapore – SUSPENSION OF MYCHJ380–MENG KEE POULTRY (M) SDN BHD (FARM 6) – Salmonella

SFA

Please note that the following farm has been suspended for import of live chicken broilers into Singapore with immediate effect. Country Malaysia
Farm Code MYCHJ380
Farm Name MENG KEE POULTRY (M) SDN BHD (FARM 6)
Malaysia
This is due to isolation of Salmonella Enteritidis in samples collected from their imported consignment.3The complete list of farms approved to export live chicken broilers is available on our website at http://www.sfa.gov.sg

RASFF Alerts – Animal Feed – Salmonella – Post Extraction Soya Meal – Brewers Yeast

RASFF

Salmonella in brewer’s yeast from Russia in Poland, Lithuania and Austria

RASFF

Salmonella Senftenberg in post extraction soya meal from Ukraine in Poland

France Research – Acute gastroenteritis: review of the 2020-2021 and 2021-2022 winter seasons

Sante Publique

Every year, an increase in acute gastroenteritis (AGE) is observed caused mainly by the circulation of noroviruses and rotaviruses. Noroviruses are responsible for AGE in people of all ages, while rotaviruses mainly affect children under 5 years of age. 

During the winter season, Public Health France monitors, with its network of partners , the epidemiological evolution of acute gastroenteritis and publishes weekly national and regional epidemiological bulletins on its website . These data are also made available as open data on Géodes .

Santé publique France is today publishing the winter monitoring report covering the 2020-2021 and 2021-2022 seasons in mainland France and recalls the simple actions to take to limit the risk of contamination.

What are the highlights of the last two seasons?

2020-2021: a season marked by a historically low level of activity

The low level of activity observed from March 2020 (end of the 2019-2020 season), in the context of the COVID-19 pandemic, continued during the 2020-2021 season. In city medicine or in hospital emergency departments, activity remained relatively stable and lower than the years prior to the COVID-19 pandemic in all metropolitan areas. 

A return to activity comparable to pre-COVID seasons during winter 2021-2022

The activity levels recorded throughout the 2021-2022 season were again comparable to those observed during the pre-COVID seasons. In hospital emergencies, activity for acute gastroenteritis remained close to historical maximums, from December 2021 to April 2022. Consultations at SOS Médecins were similar to the data observed before the COVID-19 pandemic.

Research – Legionella pneumophila Risk from Air–Water Cooling Units Regarding Pipe Material and Type of Water

MDPI

Legionella A

Abstract

Legionellosis is a respiratory disease related to environmental health. There have been manifold studies of pipe materials, risk installations and legionellosis without considering the type of transferred water. The objective of this study was to determine the potential development of the causative agent Legionella pneumophila regarding air–water cooling units, legislative compliance, pipe material and type of water. Forty-four hotel units in Andalusia (Spain) were analysed with respect to compliance with Spanish health legislation for the prevention of legionellosis. The chi-square test was used to explain the relationship between material–water and legislative compliance, and a biplot of the first two factors was generated. Multiple correspondence analysis (MCA) was performed on the type of equipment, legislative compliance, pipe material and type of water, and graphs of cases were constructed by adding confidence ellipses by categories of the variables. Pipe material–type of water (p value = 0.29; p < 0.05) and legislative compliance were not associated (p value = 0.15; p < 0.05). Iron, stainless steel, and recycled and well water contributed the most to the biplot. MCA showed a global pattern in which lead, iron and polyethylene were well represented. Confidence ellipses around categories indicated significant differences among categories. Compliance with Spanish health legislation regarding the prevention and control of legionellosis linked to pipe material and type of water was not observed.

USA – FDA Core Outbreak Table – Update

FDA

What’s New

  • A new outbreak of hepatitis A virus infections (ref # 1143) linked to a not yet identified product has been added to the table. FDA has initiated traceback.
  • For the outbreak of Listeria monocytogenes (ref # 1123), FDA has initiated an onsite inspection, sample collection, and analysis. This investigation is ongoing and additional information will be provided as it become available.
  • The outbreak of Salmonella Typhimurium (ref # 1137) linked to alfalfa sprouts has ended and the FDA investigation is closed.

USA – Persistent Strain of E. coli O157:H7 (REPEXH01) Linked to Multiple Sources

CDC

REPEXH01

REPEXH01 is a persistent strain of Shiga toxin-producing E. coli O157:H7 bacteria that has caused illnesses and outbreaks in the United States.

Illness caused by this strain was first reported to PulseNet in 2017. Illnesses caused by this strain occur year-round but are less common in winter.

In the past, the REPEXH01 strain has spread to people through contaminated food and contaminated recreational water.

This strain is relatively diverse genetically. Bacteria in this strain are within 21 allele differences of one another by whole genome sequencing, which is more diverse than typical multistate foodborne outbreaks where bacteria generally fall within 10 allele differences of one another.

Identified outbreak sources*

*Confirmed sources were implicated by epidemiologic
plus traceback or laboratory data. Suspected sources
were implicated by epidemiologic data only. More info

  • Recreational water (confirmed): 1 outbreak
  • Romaine lettuce (confirmed): 1 outbreak
  • Leafy greens (suspected): 1 outbreak
  • Ground beef (suspected): 2 outbreaks

USA – Salmonella Outbreak Linked to Alfalfa Sprouts – Outbreak is Over

CDC

Front and back packaging of alfalfa sprouts in this outbreak

Fast Facts
  • Illnesses: 63
  • Hospitalizations: 10
  • Deaths: 0
  • States: 8
  • Recall: Yes
  • Investigation status: Closed
Outbreak Investigation Summary

Data showed that alfalfa sprouts made people in this outbreak sick.

  • Of the 50 people interviewed, 35 (70%) reported eating alfalfa sprouts.
  • Eight of the people who got sick in this outbreak confirmed they had purchased Sun Sprouts brand alfalfa sprouts from their local grocery store.

On December 29, 2022, SunSprout Enterprises recalled four lots of raw alfalfa sprouts.