Electron microscope picture of SARS-CoV-2, the virus that causes COVID-19, released by the U.S. National Institutes of Health in February 2020. (Associated Press)

Electron microscope picture of SARS-CoV-2, the virus that causes COVID-19, released by the U.S. National Institutes of Health in February 2020. (Associated Press)

B.C. seeks antibody tests to determine COVID-19 ‘community immunity’

Some tests look ‘very promising,’ Dr. Bonnie Henry says

The B.C. Centre for Disease Control is examining 17 different immune system tests with people who are known to have recovered from COVID-19, checking their accuracy before deploying tests to measure what is often called “herd immunity” from the coronavirus pandemic.

Provincial health officer Dr. Bonnie Henry prefers the term “community immunity,” rather than the veterinary reference. Like other public health experts, she sees “serology tests” of immune system response as a key to easing restrictions on business and other public activity. Currently she expects some public health orders could be eased or withdrawn by the second half of May.

“The B.C. CDC lab has been doing testing on 17 different types of serology tests here in B.C.,” Henry said at her April 28 briefing on the pandemic. “There are a couple that are very promising.”

Residents at the Lynn Valley Care Centre in North Vancouver and others who have been confirmed to have recovered from COVID-19 are taking part in the studies.

“One of the key things that we need to do is to be able to have people that we know have the disease and test them and see if their antibodies show up,” Henry said. “Some of the people who have recovered from COVID-19 are in line to help us validate, as we call it, the test. That is happening even this week.”

RELATED: Canada part of global blood plasma research project

RELATED: ‘Rebooting B.C.’ means carefully reopening businesses

Blood samples have also been stored from a range of B.C. residents of different ages, waiting for an antibody test to be verified and selected. One focus will be whether some people had antibodies before the outbreak started.

“Then we are doing another cross-section of the population early in May, because that gives some time for antibodies to be developed for those who have it,” Henry said. “We will do it again in six months.”

The World Health Organization remains cautious about the potential for immunity for those who have been exposed to SARS-CoV-2, the technical term for the virus that causes COVID-19.

“We expect that most people who are infected with COVID-19 will develop an antibody response that will provide some level of protection,” the WHO said on Twitter April 25. “What we don’t yet know is the level of protection or how long it will last. We are working with scientists around the world to better understand the body’s response to COVID-19 infection. So far, no studies have answered these important questions.”


@tomfletcherbc
tfletcher@blackpress.ca

Like us on Facebook and follow us on Twitter.

BC legislatureCoronavirus

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

A unique-looking deer has been visiting a Nanoose Bay property with its mother. (Frieda Van der Ree photo)
A deer with 3 ears? Unique animal routinely visits Nanoose Bay property

Experts say interesting look may be result of an injury

The section of Highway 19A between Laburnum Road and Goodyear Road was closed to traffic due to a single vehicular accident. (DriveBC illustration)
Section of highway closed after vehicle hits pole near Qualicum Beach

Traffic disrupted for hours; two people taken to hospital

Joan LeMoine. (Peter McCully photo)
OPINION: Joan LeMoine represented the very best in all of us

Beloved Parksville area volunteer left an indelible mark on the community

Seiners fill the waters between Comox and Nanoose Bay during roe herring fishery. file photo, Pacific Wild
Quota debate heats up on the eve of Vancouver Island herring fishery

Industry and conservationists weigh in how much catch should be allowed as DFO decision coming soon

Keith the curious kitten is seen on Nov. 4, 2020 at the Chilliwack SPCA. Friday, Jan. 22, 2021 is Answer Your Cat’s Questions Day. (Jenna Hauck/ Chilliwack Progress file)
Unofficial holidays: Here’s what people are celebrating for the week of Jan. 17 to 23

Answer Your Cat’s Questions Day, Pie Day and International Sweatpants Day are all coming up this week

A still from surveillance footage showing a confrontation in the entranceway at Dolly’s Gym on Nicol Street on Friday morning. (Image submitted)
Troublemaker in Nanaimo fails at fraud attempt, slams door on business owner’s foot

VIDEO: Suspect causes pain and damage in incident downtown Friday morning

Seasonal influenza vaccine is administered starting each fall in B.C. and around the world. (Langley Advance Times)
After 30,000 tests, influenza virually nowhere to be found in B.C.

COVID-19 precautions have eliminated seasonal infection

Prime Minister Justin Trudeau listens to a question during a news conference outside Rideau cottage in Ottawa, Friday, January 8, 2021. THE CANADIAN PRESS/Adrian Wyld
Trudeau says Canada’s COVID vaccine plan on track despite Pfizer cutting back deliveries

Canadian officials say country will still likely receive four million doses by the end of March

Jobs Minister Ravi Kahlon shared a handwritten note his son received on Jan. 13, 2021. (Ravi Kahlon/Twitter)
Proud dad moment: B.C. minister’s son, 10, receives handwritten note for act of kindness

North Delta MLA took to Twitter to share a letter his son received from a new kid at school

Randy Brown, owner of Wintergreen Apartments on Fourth Avenue, has five trailers and a motorhome at the back of his property that he is renting to people who had been previously homeless. He wants to put 15 trailers on his property, hooked up to city sewer and water and BC Hydro. (SUSAN QUINN/ Alberni Valley News)
Alberni building owner digs in, refuses to remove illegal trailers

Port Alberni council gives owner two-week reprieve on remediation orders

Lilly and Poppy, two cats owned by Kalmar Cat Hotel ownder Donna Goodenough, both have cerebellAr hypoplasia, a genetic neurological condition that affects their ability to control their muscles and bones. Photo by Alistair Taylor – Campbell River Mirror
VIDEO: Wobbly Cats a riot of flailing legs and paws but bundles of love and joy to their owner

Woman urges others to not fear adopting cats with disabilities

Dr. Shannon Waters, the medical health officer for the Cowichan Valley Region, is reminding people to stay the course with COVID-19 measures. (File photo)
‘Stay the course’ with COVID measures, Island Health reminds

Limit social activity, wash hands, wear a mask, and isolate if you feel sick

Cowichan Tribes members line up at a drive-up clinic on Wednesday, Jan. 13 to receive the first doses of the COVID-19 vaccine in the region. (Kevin Rothbauer/Citizen)
BCAFN condems racism against Cowichan Tribes after COVID-19 outbreak

“Any one of us could do everything right and still catch the virus”: Regional Chief Terry Teegee.

Most Read