Category Archives: outbreak

Global Salmonella outbreak linked to melons from Honduras

Food Safety News

Almost 350 confirmed and 50 more possible Salmonella infections have been recorded across Europe and in the United Kingdom linked to melons. Some patients live in the United States.

Between mid-March and early July, 348 people fell ill due to Salmonella Braenderup and 68 needed hospital treatment but none have died. Four people were sick in the United States and two in Canada.

In late June, the U.S. Centers for Disease Control and Prevention (CDC) looked into three illnesses related genetically by whole genome sequencing, but didn’t find a link to those sick after eating melons in the UK. One ill person travelled outside the U.S. before they were sick but not to Europe and didn’t report eating melons. The other two sick people didn’t have food histories available and didn’t report traveling.

The UK is the most affected country with 102 confirmed infections while Sweden, Belgium and Germany all have 46. Denmark has 37 cases, Netherlands has 34, Switzerland has 18 while Austria, Czech Republic, Finland, France, Ireland, Luxembourg and Norway have single figure patient numbers.

RASFF Alert – Salmonella Food Outbreak – Fuet

RASFF

Salmonella food poisoning – FUET from Spain in France, Austria, Denmark, Estonia and Netherlands

Research – Rapid Outbreak Assessment: Multi-country outbreak of Salmonella Braenderup ST22, presumed to be linked to imported melons

ECDC

Between 15 March and 6 July 2021, 348 confirmed S. Braenderup sequence type 22 (ST22) cases were reported in 12 European Union/European Economic Area (EU/EEA) countries and the United Kingdom (UK). The cases were spread throughout the countries and only two reported travel. A total of 68 cases were hospitalised. No deaths were reported.

The case interviews and an analytical epidemiological study suggested small melons (in particular Galia melons) as the possible vehicle of infection. S. Braenderup ST22 matching the outbreak strain was isolated in the UK in two imported Galia melons from one batch from Honduras, and in Austria from a pooled sample of melons (unknown origin) including Galia melons.

Based on epidemiological, microbiological and traceability investigations, the vehicles of infection are presumed to be melons imported from outside the EU/EEA and the UK. Galia melons from the batch imported from a Honduran producer are probable vehicles of infection, at least in those cases reporting having consumed Galia melons. Further investigation is needed to identify the point of contamination along the production chain.

The first cases in the EU/EEA and the UK were detected in March 2021, before the batch found to be contaminated had been harvested. This indicates that contaminated food vehicles had been circulating in these countries earlier. This is confirmed by the detection of the outbreak strain in melons in Austria in April 2021.

Control measures have been implemented for imported melons distributed on the EU market. The Honduran producer finished harvesting melons in April 2021. These melons are no longer on the market. No additional exports from Honduras are foreseen until the new season starts in December. These measures reduce the risk of new infections. Given delays in reporting and the possibility of secondary cases, further cases may still be reported, but with decreasing frequency.

Downtown Publications

USA – Salmonella Outbreak Linked to Frozen Cooked Shrimp is Over.

CDC

This outbreak is over. Stay up to date on food recalls and outbreaks to avoid getting sick from eating contaminated food. 

Fast Facts
  • Illnesses: 6
  • Hospitalizations: 2
  • Deaths: 0
  • States: 2
  • Recall: Yes
  • Investigation status: Closed
Cooked shrimp over a white background

Recalled Food

Frozen cooked shrimp supplied by Avanti Frozen Foods

  • Sold under multiple brand names including 365, Censea, Chicken of the Sea, CWNO, Hannaford, Honest Catch, Meijer, Open Acres, and Waterfront Bistro
  • Imported between December 2020 to February 2021, but may have been sold in stores more recently
  • See recall notice external icon for packaging sizes, descriptions, and product codes

Salmonella was found in a sample of Avanti Frozen Foods shrimp that was collected as part of FDA’s Imported Seafood Compliance Program.

New Zealand – Further testing programme to protect consumers – Salmonella Eggs Outbreak

MPI

hazegg.jpg

New Zealand Food Safety (NZFS) is extending a programme of testing to determine the extent of Salmonella Enteritidis (SE) in poultry flocks in New Zealand and to reduce the risk to consumers.

NZFS has been carrying out tracing and testing of poultry operations after SE was found at an Auckland poultry farm.  These efforts have focussed on egg producers rather than meat as farms have existing measures to protect against salmonella and cooking chicken meat kills the bacterium.

As a result, restrictions have been placed on three North Island egg layer operations, preventing potentially infected eggs from reaching consumers.

The new testing programme widens our focus and includes 20 egg-laying facilities and five chick rearers that collectively account for 80 per cent of the industry’s table eggs, says Deputy Director-General Vincent Arbuckle.

“Consumer safety is our number one priority here. While we think the overall risk to consumers is low, there is developing evidence of a potential link between poultry and recent cases of SE in humans. We consider this testing to be part of our precautionary measures to limit risk to consumers and industry.

“The poultry industry supports this approach as well as our plans to introduce further regulatory controls for the risk of SE.”

Mr Arbuckle said NZ Food Safety expected the testing programme to take about two months.

“We’ve contacted the facilities involved and will work with them to carry out the testing. Where there is evidence that implicates food products, actions will be taken as appropriate, to protect consumers.”

In the meantime, to reduce the possibility of getting ill through food, we’d like to remind people to follow the 3Cs of food safety at home: Clean food preparation surfaces, cook raw meat thoroughly, and chill cooked meat in the fridge.

There are key actions people can take to protect against Salmonella Enteritidis in eggs.

They include:

  • Keep eggs in the fridge after purchase.
  • Avoid raw or undercooked egg products. In particular, don’t serve raw eggs to children under 2 years of age, pregnant woman, the frail and elderly, and people with low or compromised immune systems.
  • Cook eggs thoroughly – until the white is completely firm and the yolk begins to thicken.
  • Wash your hands after handling eggs.
  • Consume eggs within the recommended date on the carton.
  • Keep surfaces and kitchen utensils clean and dry before and after handling eggs.
  • Use clean eggs free from dirt, faecal matter and cracks.

“Symptoms of Salmonella illness include abdominal cramps, diarrhoea, fever, headache, nausea and vomiting. It can be serious in people with reduced immunity, older people, children, and pregnant women,’’ Mr Arbuckle said.

“If you are concerned about your health, please contact your doctor for advice.”

The information collected from the survey will also inform the development of regulations to manage potential risk on poultry farms which is currently underway.

There have been 47 cases of Salmonella Enteritidis reported in 2021 to date. Genome testing has indicated a strong association with the preparation and consumption of poultry products, making this further stage of testing and reminders to consumers a prudent step at this time.

Further information

More information about food-borne salmonella

Information about salmonellosis – Ministry of Health

Clean, Cook, Chill

Research – Yersinia enterocolitica Outbreak Associated with Pasteurized Milk

Mary Ann Liebert

In July 2019, we investigated a cluster of Yersinia enterocolitica cases affecting a youth summer camp and nearby community in northeastern Pennsylvania. After initial telephone interviews with camp owners and community members, we identified pasteurized milk from a small dairy conducting on-site pasteurization, Dairy A, as a shared exposure. We conducted site visits at the camp and Dairy A where we collected milk and other samples. Samples were cultured for Y. enterocolitica. Clinical and nonclinical isolates were compared using molecular subtyping. We performed case finding, conducted telephone interviews for community cases, and conducted a cohort study among adult camp staff by administering an online questionnaire. In total, we identified 109 Y. enterocolitica cases. Consumption of Dairy A milk was known for 37 (34%); of these, Dairy A milk was consumed by 31 (84%). Dairy A had shipped 214 gallons of pasteurized milk in 5 weekly shipments to the camp by mid-July. Dairy A milk was the only shared exposure identified between the camp and community. Y. enterocolitica was isolated from Dairy A unpasteurized milk samples. Five clinical isolates from camp members, two clinical isolates from community members, and nine isolates from unpasteurized milk were indistinguishable by whole-genome sequencing. The risk for yersinosis among camp staff who drank Dairy A milk was 5.3 times the risk for those who did not (95% confidence interval: 1.6–17.3). Because Dairy A only sold pasteurized milk, pasteurized milk was considered the outbreak source. We recommend governmental agencies and small dairies conducting on-site pasteurization collaborate to develop outbreak prevention strategies.

USA – Oysters recalled amid Washington’s largest ever Vibrio outbreak

Food Safety News

KSWFOODWORLD

Washington state has initiated a recall of live oysters harvested from the Samish Bay growing area in the Puget Sound area. The recall is in response to multiple cases of Vibrio parahaemolyticus illnesses associated with oysters harvested in the area. 

The outbreak has already surpassed the highest number of cases ever recorded by the state for the month of July, according to the state’s Health Department. Distribution details are incomplete but it is known that some of the oysters have gone to Asian and Canadian buyers as well as customers in the United States.

A recent heat wave, coupled with very low tides at mid-day, are likely to blame for the increased rate of illness, which is associated with eating raw or undercooked shellfish, especially oysters that are contaminated with Vibrio. 

The extremely low tides are part of an 18.6-year tide cycle, which means there will be more to come for a period of time during the cycle.

USA – High heat, low tide likely triggering spike in shellfish-linked infections – Vibrio

DOH WA

Food Illness

News Release

For immediate release: July 16, 2021   (21-170)Spanish

Media contact: Teresa McCallion, Communications, 360-701-7991

High heat, low tide likely triggering spike in shellfish-linked infections

OLYMPIA – An outbreak of vibriosis in Washington has already surpassed the highest number of cases ever recorded by the state for the month of July. Recent high temperatures and low tides in Washington State are likely to blame for the increased rate of illness, which is associated with eating raw or undercooked shellfish, especially oysters that are contaminated with Vibrio.

Found naturally in the environment, Vibrio bacteria thrive in warm temperatures. When midday low tides coincide with warm weather, Vibrio bacteria can grow quickly, increasing risk of illness among people who eat raw or undercooked oysters.

Vibriosis symptoms include diarrhea, abdominal cramps, nausea, vomiting, headache, fever, and chills. The illness usually occurs 4 hours to 4 days after eating contaminated shellfish, with mild or moderate symptoms that typically run its course in 2 to 3 days. Most people get sick within one day of consuming raw or undercooked shellfish.

People with weakened immune systems or liver disease are at higher risk for Vibrio infections. These people, and anyone who wants to avoid illness, should eat only thoroughly cooked shellfish.

“Another effect of the recent heat wave is the perfect storm of conditions for Vibrio infections. It’s important that when enjoying shellfish, we follow simple steps to stay healthy,” said Todd Phillips, Director of the Office of Environmental Health and Safety.

The Three Cs can prevent illness from Vibrio.

  • Cook at 145° F for 15 seconds to destroy Vibrio bacteria.
  • Check the DOH Shellfish Safety Map before heading to the beach to harvest shellfish recreationally. Shellfish gathered from open and approved areas should be harvested as the tide goes out.
  • Chill quickly. Bring a cooler with ice with you when harvesting shellfish recreationally or purchasing for a store or seafood stand (or have them packed on ice). Oysters should be put on ice or refrigerated as soon as possible.

When preparing shellfish, people should wash hands frequently and not return cooked shellfish to the plate or cutting board where raw shellfish was prepared.

Visit the DOH Vibriosis web page for more information.

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India – Cholera outbreak: 16 of 24 water samples found non-potable in Panchkula

The Tribune

Of the 24 water samples collected from Abheypur and Budhanpur villages, 16 were found to have coliform bacteria, meaning “non-potable”.

The samples were analysed at a government laboratory in Ramgarh. Four other samples collected from Sector 16 (one sample), Rajiv Colony (two) and Indira Colony (one) were found to be fit for drinking. So far, 55 samples have been collected and sent to the Ramgarh laboratory for analysis.

Of the 55 water samples, the report of 28 (16 found non-potable and 12 potable) have been received, while that of 27 is still awaited. Of the 35 stool samples, 23 have been found positive for vibrio cholera. Meanwhile, the number of patients infected with cholera reached 440 today. As many as 72 (30 adults and 42 children) are still under treatment at the Civil Hospital in Sector 6.

USA – Listeria Outbreak: Three sick with one dead in long-term care facility or hospital linked to Tyson chicken

Food Poison Journal

2 sick, with 1 dead in Texas, 1 ill in Delaware.

All of the sick people in this outbreak ate foods served at a long-term care facility or hospital.

Tyson Foods Inc., has recalled frozen, fully cooked chicken products, such as chicken strips and diced chicken, and products made with fully cooked chicken, supplied by Tyson Foods Inc.