Public Health Note: Outbreaks of Gastrointestinal Diseases and Noroviruses Associated with Shrimp Points

Ottawa, ONAnd the June 1, 2022 / cnw / –

Why are you looking at this notice

public health agency Canada (PHAC) is working with its regional public health partners, the Canadian Food Inspection Agency (CFIA) and Health Canada to investigate outbreaks of norovirus infection and gastrointestinal disease in four provinces: in British Columbia, Albertato me Manitoba and in Ontario.

According to the results of the investigation, the consumption of prawns is the cause of the outbreak. All people who contracted the disease reported eating spot prawns before symptoms appeared. Authorities are currently investigating the cause of the contamination. More details are needed to determine the source of the norovirus contamination of prawns.

On May 31, 2022, the CFIA issued a food recall alert for several live prawns linked to the cases under investigation. The recalled products were sold in British Columbia, Albertato me Manitoba and in Ontario It may have been distributed in other provinces or territories. CFIA continues to investigate the safety of this food, which could lead to the recall of other products. If other products are recalled, the CFIA will notify the public by updating food recall warnings.

Do not consume, use, sell or serve retrieved spot shrimp. Check to see if you have any retrieved topical prawns. If so, get rid of them and wash your hands.

The investigation into the outbreak is ongoing and further action will be taken as needed to protect public health. This notice will be updated as the investigation progresses.

Survey Summary

as of 1Verse June 2022, 48 cases of norovirus and gastrointestinal disease were reported in the following provinces: British Columbia (11), Alberta (12), Manitoba (19) and Ontario (6). People fell ill in mid-to-late May 2022; No deaths were reported. Not all cases have been tested, but laboratory tests have confirmed the presence of a norovirus infection.

CFIA continues to investigate the safety of spot prawns in relation to cases of the disease under investigation. A food recall warning was issued on May 31, 2022 in connection with various quantities of live shrimp associated with the cases under investigation. For more information about recalled products, please visit the Government Recalls and Safety Alerts website. Canada. If a food safety investigation results in additional product recalls, CFIA will notify the public by updating recall notices.

Who is most at risk?

Severe gastrointestinal diseases such as norovirus infection are common in North America. It is highly contagious and affects all age groups. However, pregnant women, people with weakened immune systems, young children, and the elderly are most likely to develop serious complications, such as dehydration.

What you should do to protect your health

Norovirus-contaminated prawns may look, smell, and taste normal. The following safe food handling techniques can reduce the risk of disease:

  • Do not consume, use, sell or serve retrieved spot shrimp. Check to see if you have any foods that have been recalled. If so, get rid of it and wash your hands.
  • Avoid consuming raw or partially cooked prawns.
  • Eat spot shrimp immediately after cooking and put leftovers in the refrigerator.
  • Always separate raw and cooked shrimp to avoid cross-contamination.
  • Use separate plates and utensils for raw shrimp and cooked shrimp.
  • Wash your hands well with soap before and after eating.
  • Clean and sanitize cutting boards, counters, knives, and other utensils after preparing raw foods.

Noroviruses can be transmitted by patients. Cleaning and disinfection practices are essential to prevent further disease in your home.

  • Thoroughly clean contaminated surfaces, especially after a bout of illness.
  • After an illness attack, immediately remove and wash clothing, bedding, and other linens that may have been contaminated with the virus (use hot, soapy water).
  • If you have or have had any gastrointestinal disease, do not bring food or water to other people for as long as you have symptoms and for the first two days (48 hours) after recovery.


People who have been exposed to the virus usually develop symptoms within 24 to 48 hours, but symptoms can appear as quickly as 12 hours after exposure. The disease often appears suddenly. Even if you’ve had norovirus before, it’s possible to get infected again.

The main symptoms of diseases caused by norovirus:

  • Diarrhea;
  • vomiting (children are more likely to vomit than adults);
  • nausea;
  • colic;

Other symptoms:

  • low fever
  • Headache;
  • goosebumps.
  • muscle pain;
  • general feeling of tiredness;

Most people feel better after a day or two, symptoms go away on their own, and no long-term effects remain after illness. As with any illness that causes diarrhea or vomiting, affected people should drink plenty of fluids to replace lost body fluids and prevent dehydration. If the condition is severe, it may be necessary to give intravenous fluids in hospital. If you have symptoms of illness caused by norovirus, see your health care provider.

What is the government doing? Canada

Government Canada Committed to protecting Canadians from intestinal disease outbreaks.

public health agency Canada The Human Health Component is leading the investigation into this outbreak and liaising regularly with federal, provincial and territorial partners to monitor the outbreak and take coordinated action to control it.

health Canada Performs health risk assessments to determine whether the presence of certain substances or microorganisms in food poses a health risk to consumers.

The Canadian Food Inspection Agency is conducting food safety investigations to find the potential food source of the outbreak.

additional information

source public health agency Canada

For more information: Media Inquiries: Public Health Canada, Media Relations, Phone: 613-957-2983, Email: [email protected]; Public inquiries: Toll free: 1-866-225-0709, Email: [email protected]

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