Health officials are offering some food safety advice as this year’s herring egg harvest opens along a section of Vancouver Island’s east coast. (File photo)

Health tips from officials as herring egg harvest opens on Vancouver Island

Outbreak of a cholera strain in 2018 forced closure of the harvest

Health officials are offering some food safety advice as this year’s herring egg harvest opens along a section of Vancouver Island’s east coast.

Hand-gathered herring eggs, known as spawn-on-kelp, are an important traditional seafood for many First Nations, but an outbreak of a cholera strain in 2018 forced closure of the harvest between French Creek and Qualicum Bay.

READ MORE: West coast group campaigns for seal, sea lion harvest

Island Health says in a news release that lab tests confirm a small group of people contracted the vibrio cholera bacteria last year after eating herring eggs from the affected region.

Officials say the bacteria are a “natural inhabitant” of the marine environment, are unable to produce the toxin found in more severe strains of cholera and are not from poor sanitation or sewage.

Vibrio cholera infections are relatively rare, but the health authority says when they do occur symptoms can include diarrhea, abdominal cramps, fever, vomiting, nausea, blood and mucus of the stool.

Until last year there had been no reported outbreaks, but a Health Canada and BC Centre for Disease Control review found salinity, acidity, temperature, sunlight and availability of nutrients can encourage the bacteria.

Water temperature above 10 C and sea water low in salt are two key factors in development of vibrio cholera, the review said.

“At the time of the March 2018 harvest, although water temperatures were below 10 degrees C, a relatively high rainfall could have affected different environmental factors, including lowering salinity and increasing nutrient availability,” it said.

The health authority urges harvesters to use bleach or a similar sanitizer on all harvesting and egg-carrying equipment, to wash hands before handling roe and to rinse the eggs with drinking-quality water or boiled, cooled salt water to remove some bacteria.

It also recommends the roe be cooked or blanched, but ”if cooking is not preferred, be aware that there is always a risk with eating raw seafood.”

Vibrio cholera is an emerging issue on the B.C. coast, the news release says, adding that First Nations, health authorities and the federal and provincial governments are working to better understand it.

The Canadian Press

Like us on Facebook and follow us on Twitter

Just Posted

Langley developer’s appeal of extradition denied – faces fraud charge

The Court of Appeal has denied Mark Chandler’s attempt to avoid extradition to California.

VIDEO: Mark Warawa shows off Aldergrove’s Telephone Museum

The Langley–Aldergrove MP visited the 100-year-old museum and talked phones with AGHS president.

District struggles to find enough specialty teachers for Langley schools

Resource teachers and ELL teachers are in high demand across B.C., and in Langley

Aldergrove father fights for his life after flu turns into paralyzing condition

Reisig has lost all motor skills with the exception of slight head, shoulder and face movements.

VIDEO: Trinity Western University takes national volleyball championship

Third national title in four years for Langley-based university team

VIDEO: RCMP ask kids to help name soon-to-be police dogs

13 German shepherd puppies will be born this year

VIDEO: Race and sport examined at new We Are Hockey exhibit in Abbotsford

UFV SASI hosting exhibit looking at hockey history and race

Nearly 40% of British Columbians not taking their medications correctly: poll

Introduction of legal cannabis could cause more issues for drug interactions

Mining company fined $70,000 after two workers killed in B.C. truck crash

Broda Construction pleaded guilty to failing to provide safe workplace at Cranbrook rock quarry

B.C. argues it cannot stop Trans Mountain, but it can protect environment

Alberta Premier Rachel Notley says only Ottawa has the authority to decide what goes in trans-boundary pipelines

B.C. poverty plan combines existing spending, housing programs

Target is to lift 140,000 people out of poverty from 2016 level

Avalanche warning issued for all B.C. mountains

Warm weather to increase avalanche risk: Avalanche Canada

Temperature records dating back to 1947 broken in B.C.

The Squamish airport recorded the hottest temperature in the province (and Canada) on Sunday: 21.3 C

Privy Council clerk Michael Wernick retires in wake of SNC-Lavalin case

Jody Wilson-Raybould accused Wernick of pressuring her to head off criminal charges for the firm

Most Read