(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

Rockin’ Robin

Another sign spring has sprung

Blue River Health Centre closed March 25-26

Clinic will return to regular operations on March 27

Spring Break Skijor Day

More horsing around at Smokin True Ranch

Community of Vavenby: weekly news update

Please be aware of children near the roads when driving

Trudeau is not a shoo-in

Editor, The Times:

Sparks fly as SUV speeds down wrong side of Highway 1 trying to flee RCMP

Captured on video, the vehicle headed westbound against oncoming traffic before crashing

Story of Wet’suwet’en Chief Alfred Joseph being told

Song of the Earth on Chief Gisday’wa will be launched in Hagwilget

Houston woman gets two years for aggravated assault

Ewald pleads guilty; trial of co-accused Calvin Dyrland begins in Smithers B.C. court

Fundraising campaign launched for man caught in SilverStar avalanche

In only two days, the GoFundMe surpassed its $15,000 goal

Terror at sea: Helicopter rescues frightened cruise passengers in Norway

The Viking Sky cruise ship was carrying 1,300 passengers and crew when it experienced engine trouble

Search and rescue team helicopters injured climber from B.C. provincial park

A 30-year-old woman suffered a suspected lower-limb fracture in Skaha Bluffs Provincial Park

DOJ: Trump campaign did not co-ordinate with Russia in 2016

Attorney General William Barr said special counsel “does not exonerate” Trump of obstructing justice

Trudeau in Vancouver to support Tamara Taggart at Liberal nomination event

The former broadcaster is seeking the nomination for the Vancouver Kingsway riding

Trudeau calls May 6 byelection for B.C. riding of Nanaimo-Ladysmith

The riding opened up when Sheila Malcolmson resigned in January

Most Read