This image provided by Abbott Laboratories in August 2020 shows the company’s BinaxNOW rapid COVID-19 nasal swab test. More than 3.8 million rapid tests are now in the hands of provincial health authorities but many jurisdictions are still evaluating how they might help battle the COVID-19 pandemic. THE CANADIAN PRESS/HO-Abbott Laboratories via AP

This image provided by Abbott Laboratories in August 2020 shows the company’s BinaxNOW rapid COVID-19 nasal swab test. More than 3.8 million rapid tests are now in the hands of provincial health authorities but many jurisdictions are still evaluating how they might help battle the COVID-19 pandemic. THE CANADIAN PRESS/HO-Abbott Laboratories via AP

Rapid tests slow to be used as health officials unsure of reliability, best use

Canada has announced plans to buy nearly 38 million rapid tests from five different manufacturers

More than 3.8 million rapid tests for COVID-19 are now in the hands of provincial health authorities but many jurisdictions are still evaluating how the devices might help battle the pandemic.

Health Canada has approved more than three dozen different tests for COVID-19, but only six of them are “point-of-care” versions more commonly referred to as rapid tests.

The “gold-standard” COVID-19 tests need to be processed in a lab, and usually take at least a day to provide results. Rapid tests can be processed in the same place a patient is tested, sometimes in as few as 15 minutes, but they are generally considered less reliable than lab results.

There are two different kinds of rapid tests. One, like the traditional lab-based version, looks for the genetic material of the novel coronavirus. The other looks for the specific markers the virus leaves on the outside of a cell, known as antigens.

Since Sept. 29, Canada has announced plans to buy nearly 38 million rapid tests from five different manufacturers, and began sending the first shipments to provinces in the late last month.

As of this week, more than 3.8 million have been delivered.

Ontario Premier Doug Ford called rapid tests “an absolute game changer” the day the federal government announced its deal with Abbott Diagnostics to buy 7.9 million of its ID Now genetic tests.

They aren’t changing much yet.

Most jurisdictions are still not whether they can fully trust the results, or figure out the best way to use them. In almost all cases, the rapid-test results are still being verified by also testing a patient with the lab-based version.

Ontario Health said Friday the province has started to “roll out” some rapid tests focused on detecting outbreaks and in rural settings where lab tests are harder to access.

Ontario Health will study the results of the initial rollout “to inform possible expansion of the use of this technology,” the department’s spokespeople said in a written statement.

Dr. Vera Etches, the medical officer of health in Ottawa, says her city’s testing team is looking at some pilot projects to use rapid tests, such as at a long-term care home with a suspected outbreak. But she said there are still concerns rapid tests might not be as reliable as the lab tests.

“We’re still needing to study how much would COVID be missed by tests that are falsely negative,” she said.

British Columbia health officer Dr. Bonnie Henry said Thursday that her province is still validating the ID Now tests at the BC Centre for Disease Control.

She said B.C. has also received some antigen tests but those aren’t yet being used.

“The challenges we have are that they’re not as sensitive, so they don’t pick certain things,” she said.

“But we do know that they can play an important role in places like where we have a cluster of people with an illness and we need to rapidly determine if it is COVID or not. If several people are tested and they’re all negative, that’s reassuring. If one of them is positive, that tells you that this is probably an outbreak that you’re dealing with.”

ALSO READ: Interpreters for B.C.’s COVID updates would boost awareness of pandemic protocols, advocate says

Manitoba has sent several ID Now test kits to remote communities where lab tests can take longer, and to a Winnipeg hospital in the midst of a COVID-19 outbreak. But health workers are still learning how to use them. The swabbing must still be done by trained professionals.

A spokeswoman for Manitoba Health said this week the tests will likely start being used there by the end of the month.

As with Ontario and B.C., Manitoba Health is viewing the rapid tests as experimental, verifying most rapid tests with the lab-based model and then studying the results overall to see how they’re working.

Manitoba Health plans to use the antigen tests it received only as a screening tool, but is still validating the accuracy of antigen tests overall.

A spokeswoman for the Quebec health ministry said Friday Quebec has received 30,000 ID Now tests, and 547,000 antigen tests, known as Panbio, made by Abbott Laboratories.

Marjorie Larouche said in a written statement that the rapid tests are “less sensitive” than lab-based tests.

“Deployment must therefore be carried out in a very supervised and co-ordinated manner,” she said.

An expert committee was set up in Quebec to decide how the tests should be used and is evaluating them in several pilot projects in hospitals in the Montreal and Quebec City areas.

Quebec is looking at using the tests in remote areas, for health workers, screening clinics, long-term care facilities and schools.

“The date for the distribution of tests has not yet been determined,” she said, adding it is expected before the end the year.

— With files from Brenna Owen in Vancouver.

Mia Rabson, The Canadian Press


Like us on Facebook and follow us on Twitter.

Want to support local journalism during the pandemic? Make a donation here.

Coronavirus

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

Just Posted

Pitt Meadows author Amanda Muratoff. (Kyle Cumming/Special to The News)
Pitt Meadows author releases seventh book in fantasy series

Rise of the Renegades is part of a series Amanda Muratoff has been writing with Kayla Mansur

Howard Done and his wife were walking through the Yennadon neighbourhood of Maple Ridge, when they encountered this young buck relaxing in the grass on a vacant lot at the corner of 232nd Street and 128th Avenue. "He didn't seem to be bothered by any of the traffic, pedestrians or dogs," Done noted. (Special to The News)
SHARE: Young buck caught lounging in Yennadon

Send us your photo showing how you view Maple Ridge or Pitt Meadows, and it could be featured soon

Aman Kaywan is all smiles after donating $5,000 to the Ridge Meadows Hospital Foundation. (Special to The News).
Charitable Maple Ridge man says,”You don’t have to be rich to make a difference.”

Aman Kaywan saved up to donate $5,000 to Ridge Meadows Hospital Foundation

People wearing face masks to help curb the spread of COVID-19 cross a street in downtown Vancouver, on Sunday, November 22, 2020. The use of masks is mandatory in indoor public and retail spaces in the province. THE CANADIAN PRESS/Darryl Dyck
B.C. reports 17 COVID deaths, 1,933 new cases as hospitalizations surge over the weekend

There are 277 people in hospital, of whom 59 are in ICU or critical care

(Pixabay)
All dance studios, other indoor group fitness facilities must close amid updated COVID-19 rules

Prior announcement had said everything except spin, HIIT and hot yoga could remain open

B.C. Liberal interim leader Shirley Bond speaks to reporters from Prince George via Zoom conference, Nov. 24, 2020. MLAs are being sworn in for the legislature session this week, many of them also by video. (B.C. legislature)
B.C. Liberal leadership contest will wait for election post-mortem

Interim leader set to face NDP on payments for COVID-19

Tabor Home in Abbotsford. (Ben Lypka/Abbotsford News)
Tabor Home in Abbotsford records 8 deaths and 124 COVID-19 cases

63 per cent of residents at long-term-care facility have tested positive

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Join Black Press Media and Do Some Good
Join Black Press Media and Do Some Good

Pay it Forward program supports local businesses in their community giving

Product Care offers more than <a href="http://link.mediaoutreach.meltwater.com/ls/click?upn=pDYyTceU0YgTDdsd92GohdQJsmSiPFEkcB4MdMM0Qkoqb1aJA-2By5aWklKJXV6QRdyTteNjr2FccUOVLUe4t5Zw-3D-3D1ds-_KVyBcpjXADXifSWVpM8nQcAzSm9-2B6fEFnjVrTsOcu31irDHDxi5k0QTOIWCqMXUxaNbrf0yRzXSSpROCkfx3NkUtbr65Dkcw1J0by-2F-2BDdDiJGbcfhtjHWYSs66NwakeCCLYkj20e9ICIZsLcedqNZKBhsN0sGgBsInpdzsddYikUZkmQvFdxLJhakpgAA6aAJ5ScUoWR6vO9sM819vRB-2F6x7dsdfIaWa4ZgHxR4G7hauxgSJCsNI2bP5J62EFfM0aiDqRPwUPUjt7i5-2FMqpdJxrEBewnLky-2B3lE0JAmi5UsJBkJejuLOjsndZz4b7dNgbvt6KyewKuF0sxU2rpYgkAO9YAKc9STuFJd28Qn7jE0-2FqlB8HKOvpW150NHS-2BOMBcK5rkZ8YAuPqJy11k-2BgndiKB-2FWl2icAfbWtRGJPb8fM-3D" target="_blank">150 free drop-off locations</a> in B.C. (Pixabay.com)
Recycling broken or burnt string lights can reduce holiday landfill waste

In 2019, Product Care Recycling diverted more than 11.6 million light bulbs from landfills

Helen Watson, posing for a photo for her 100th birthday, turned 105 on Saturday (Nov. 21). (File photo)
B.C. woman who survived Spanish Flu turns 105

Helen Watson has packed a lot into life – including being in two pandemics

Most Read