(AP Photo/Kamran Jebreili)

Two B.C. oyster farms closed by norovirus

Officials report 40 cases of the illness in the past month after people had eaten raw oysters

Health officials in British Columbia have closed two oyster farms amid an investigation into another outbreak of norovirus linked to the consumption of raw oysters.

The BC Centre for Disease Control says there have been about 40 cases of the acute stomach upset since early March and all those who became ill reported eating raw oysters from B.C.

READ MORE: Tofino faces shellfish closures after norovirus outbreak hits 120

READ MORE: Ocean currents tied to B.C. norovirus outbreak: CDC

The centre says laboratory testing confirms the presence of norovirus in some of the cases and the illness is suspected in the rest of those who have become ill.

An exact source of the contamination has not been determined but the centre says human sewage in seawater is the most likely cause.

Nearly 350 cases of norovirus linked to raw or undercooked B.C. oysters were reported in B.C., Alberta and Ontario starting in late 2016 and continuing through early 2017, forcing the closure of 13 oyster farms on the B.C. coast.

That outbreak was declared over in April 2017, and an article published the British Columbia Medical Journal last June determined sewage spread by ocean currents caused the widespread contamination.

Researchers concluded the outbreak disproved claims that shellfish is safe to eat between September and April, and noted that bacteria, viruses and biotoxins persist in cold sea water year-round.

The centre says it does not recommend eating raw oysters and advises the shellfish should be cooked to an internal temperature of 90 C for 90 seconds to kill pathogens.

The Canadian Press

Like us on Facebook and follow us on Twitter.

Just Posted

Boil water notice in effect for Peachland

Interior Health recommends all customers drink boiled water or a safe alternative.

Tax increase proposed to meet Lake Country facility maintenance gap

A draft of the Parks and Recreation Master Plan proposes tax increases

Top 5 places to take your dog in Kelowna

Here are our top five places to take your furry friend

COSAR makes Kelowna Law Day debut

The search and rescue team was on scene as Girl Guides were arrested left and right

Kelowna woman runs to beat hunger

Teri Kanner is collecting donations for the Central Okanagan Community Food Bank

VIDEO: Moose found licking salt off B.C. man’s pickup truck

Tab Baker was in his garage in Prince George when the small moose gave his truck a clean

Half-naked shooter guns down four, runs away in Nashville Waffle House shooting

Nashville police say they are looking for Travis Reinking in connection with the shooting

Child’s body found in river downstream from where boy went missing during flood

Three-year-old Kaden Young was swept out of his mother’s arms in February

West Kelowna Minor Baseball finally sees the light

The local baseball association has stadium lights at its main stadium

B.C. VIEWS: Eliminating efficiency for farm workers

Don’t worry, NDP says, the B.C. economy’s booming

Kamloops RCMP respond to report of dead body floating in Thompson River

Body has not been located, searches to continue as river conditions improve

B.C. student makes short-list for autism advocacy award

Brody Butts honoured for his role as a mentor and self-advocate

Austin Powers ‘Mini-Me’, Verne Troyer, dies at 49

Facebook page confirmed his death Saturday afternoon

Alberta man dead after snowmobile collision on B.C. mountain

The incident occurred on Boulder Mountain Friday morning

Most Read