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

Bulldogs forward Brandon Buhr is knocked off the puck by Grizzlies defenceman Lindsay Reid. (ELENA RARDON / ALBERNI VALLEY NEWS)
BCHL: Alberni Valley Bulldogs beaten back-to-back by Victoria Grizzlies

Victoria Grizzlies named Island Champions while Bulldogs take second place

In 1903, if you were looking north down First Avenue with Alberni in the distance, this is what you would have seen. Scattered houses along River Road are visible, as is the corner of Watson Block building in the lower lefthand corner of the photograph. This photo is part of the 24,000 online collection of the Alberni Valley Museum. View this one and more at https://portalberni.pastperfectonline.com. (PHOTO PN02975 COURTESY ALBERNI VALLEY MUSEUM)
LOOK BACK: Historic street scenes of Port Alberni

Take a peek back in time with the Alberni Valley Museum’s digital archives

This photo shows Franklin River Camp "B" circa 1940. Logging was started in the Franklin River area by Bloedel, Stewart & Welch in 1934. This is one of 42 photos of the Franklin River area, donated together in an album put together by the donor's husband, Stanley Young. Young worked as a highrigger in the Franklin River area from 1939-46. This is one of 24,000 photos contained in the Alberni Valley Museum’s digital archives, available for public viewing at https://portalberni.pastperfectonline.com. (PHOTO PN10830 COURTESY ALBERNI VALLEY MUSEUM)
LOOK BACK: Logging along Franklin River

Take a peek at Alberni Valley history with the Alberni Valley Museum

Getting enough Vitamin D can be challenging for Canadians, especially during winter months. (CONTRIBUTED)
ACTIVE LIVING: The ‘sunshine vitamin’ plays a vital role in our health

Port Alberni registered dietitian Sandra Gentleman writes about health issues

Courtenay-Alberni NDP MP Gord Johns gives a thumbs up to active transportation during a presentation of the Alberni Valley Chamber of Commerce's Bike SEAT program at McLean Mill National Historic site in Port Alberni on April 16, 2021. (SUSAN QUINN/ Alberni Valley News)
QUINN’S QUIPS: MP Gord Johns takes victory ride for cycling strategy

Johns gained a reputation as the bicycle-riding MP during his first year

A bullet hole is seen in the windshield of an RCMP vehicle approximately 4 km from Vancouver International Airport after a one person was killed during a shooting outside the international departures terminal at the airport, in Richmond, B.C., Sunday, May 9, 2021. THE CANADIAN PRESS/Darryl Dyck
Homicide team IDs man in fatal YVR shooting as police grapple with spate of gang violence

Man, 20, charged in separate fatal shooting Burnaby over the weekend

Nurse Gurinder Rai, left, administers the Moderna COVID-19 vaccine to Maria Yule at a Fraser Health drive-thru vaccination site, in Coquitlam, B.C., on Wednesday, May 5, 2021. The site is open for vaccinations 11 hours per day to those who have pre-booked an appointment. THE CANADIAN PRESS/Darryl Dyck
COVID vaccine bookings to open for adults 40+, or 18+ in hotspots, across B.C.

Only people who have registered will get their alert to book

Dr. Victoria Lee, CEO of Fraser Health, hosts an update on efforts to contain B.C.’s COVID-19 transmission in Surrey and the Fraser Valley and protect hospitals in the Lower Mainland, May 6, 2021. (B.C. government video)
B.C.’s COVID-19 infection rate slowing, 20 more people die

Deaths include two people in their 40s, two in their 50s

Oak Bay resident Hugh Thompson died Friday, May 7. (GoFundMe photo)
Oak Bay dad dies mountain biking near Shawnigan Lake

Community rallies around family with online fundraiser

The Canadian Forces Snowbirds are in the Comox Valley for their annual spring training. Photo by Erin Haluschak
Suspected bird strike on Snowbirds plane during training in Comox

Pilot followed protocols and landed the aircraft on the ground without any problems

The Village on Third in Nanaimo won the Judges’ Choice award as top overall entry at the Vancouver Island Real Estate Board Commercial Building Awards. (Photo submitted)
Top developments north of the Malahat honoured by Vancouver Island Real Estate Board

Nanaimo’s Village on Third takes top honour at VIREB Commercial Building Awards

BCIT. (Wikimedia Commons)
BCIT apologizes after employee’s ‘offensive and hurtful’ email leaked to Métis Nation

BCIT says employee’s conduct has been investigated and addressed

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

An adult male yellow-breasted chat is shown in this undatd photograph on lands protected in collaboration between the En’owkin Centre and Penticton Indian Band with support through ECCC. The rescue from near extinction for a little yellow bird hinges on the wild rose in British Columbia’s Okanagan Valley, a researcher says. THE CANADIAN PRESS/HO, A. Michael Bezener/ En’owkin Centre 2020 *MANDATORY CREDIT*
Rare yellow birds need wild roses to survive in British Columbia: researcher

The importance of local wild roses emerged over a nearly 20-year experiment

Most Read