Norovirus outbreak closes oyster farms off Denman Island, Deep Bay

Centre for Disease Control warns against eating raw B.C. oysters

Two shellfish farms off mid-Vancouver Island have been closed following an outbreak of norovirus associated with the consumption of raw B.C. oysters. — File photo

The BC Centre for Disease Control (BCCDC) has linked an outbreak of norovirus associated with raw B.C. oysters, and two area oyster farms implicated in the outbreak have been closed, the Provincial Health Services Authority announced Monday, April 9.

The BCCDC is warning raw shellfish consumers to take steps to protect their health following an increase in cases of norovirus associated with consumption of raw B.C. oysters. Since early March 2018, approximately 40 cases of acute gastrointestinal illness have been reported to public health authorities in B.C.

Two oyster farms implicated in the outbreak have been closed by federal authorities.

Fisheries and Oceans Canada posted a sanitary emergency closure notice March 23 for oysters at a farm off the west coast of Denman Island. Another emergency sanitary closure was posted for oysters in a portion of Deep Bay on April 5. In both cases, the prohibition will be in effect “until further notice” and “until further information can be obtained and assessed.”

All of the ill people reported consuming raw B.C. oysters. Laboratory testing has confirmed the presence of norovirus in some of the cases and it is suspected in the others. The investigation is ongoing.

In order to kill norovirus and other pathogens, the BCCDC recommends consumers cook oysters thoroughly, to an internal temperature of 90˚C (degrees Celsius) for 90 seconds. Consumption of raw oysters is not encouraged.

In late 2016 and early 2017, 347 norovirus outbreak cases associated with raw or undercooked B.C. oysters were reported in B.C., Alberta and Ontario. The outbreak was declared over in April, 2017. Learn more in the BCCDC’s Annual Summary of Reportable Diseases, under Norovirus.

While the precise sources of contamination have not been identified, human sewage in the marine environment is currently believed to be the most plausible cause of shellfish contamination.

Anyone becoming ill with diarrhea and vomiting after eating shellfish should call BC HealthLink at 811. If symptoms are severe or persist, they should see their physician.

Oyster-related illness can be reported to your local health authority for investigation and follow-up.

For most people, norovirus is a self-limiting illness and people will recover on their own with proper hydration and rest. On rare occasions, dehydration may be severe and require medical attention.

Learn more about Norovirus at www.bccdc.ca/health-info/diseases-conditions/norovirus-norwalk-like-virus.

Learn more about the safe consumption of fish and shellfish at www.bccdc.ca/health-info/food-your-health/fish-shellfish.

— NEWS staff and

PHSA news release

Just Posted

Work continues on Courtenay’s 4th Street Improvement Project

4th street will be closed to traffic between Duncan and Cliffe Avenue

Inside the music: step behind the curtain at the venerable Vancouver Island Music Festival

Big Read: VIMF in the Comox Valley exemplifies the spirit of an Island summer music festival

Pride Society of the Comox Valley set to kick off week-long celebration

The organization is celebrating Pride Week with a variety of events to bring the community together.

Cannabis facility planned in Courtenay

Design up to 100,000 square feet

Major private donation to Kus-kus-sum project

Frank and Bobbi Denton, longtime residents of the Comox Valley, have donated… Continue reading

BC Games: Day 2 comes to an end

Hundreds of medals have been handed out at the 2018 BC Summer Games in the Cowichan Valley

Bob Castle’s Under the Glacier cartoon for July 19, 2018

Bob Castle’s Under the Glacier cartoon for July 19, 2018… Continue reading

Brush fire breaks out west of Port Alberni

Fire forces partial closure of Highway 4 heading to Ucluelet and Tofino

Courtenay fire department extinguish small structure fire at townhome

The Courtenay Fire Department attended a small structure fire at a home… Continue reading

Accident on Vancouver Island after artillery gun rolls down hill and damages taxi

Witness says accident happend about 1 p.m. Saturday; RCMP investigating

B.C. mining company, involved in 2014 spill, ordered to pay lost wages

Mount Polley Mining Company must pay wages to 26 employees who were laid off without proper notice

Two significant wildfires burning in southeastern B.C.

More than 20 fires were burning in the Southeast Fire Centre as of Saturday afternoon

Volunteers provide the glue that keeps BC Games moving

The 2018 Cowichan Summer Games had more than 2,300 volunteers on hand across Vancouver Island

No Name brand chicken nuggets recalled due to possible salmonella

Canadian Food Inspection Agency says multiple illnesses reported in B.C., Alberta and Ontario

Most Read