The height of the pandemic with physical distancing, vaccine mandates and masking may seem like a distant memory. In reality, COVID-19 hasn't gone away, though the extraordinary measures and outsized impact of the virus on Canadians' daily lives have.
With the World Health Organization warning about a surge in infections worldwide, here is what you need to know about COVID-19 test kits, including where you can find them and whether you can use expired ones.
Health Canada has authorized three types of for SARS-CoV-2, the virus that causes COVID-19.
Certain self-tests can be used with or without symptoms while others should only be used if you have symptoms, according to Health Canada.
Canada mainly uses nucleic acid-based testing, or molecular testing, to diagnose COVID-19, with polymerase chain reaction (PCR) being the most common one.
Rapid antigen detection tests, commonly known as , are used to detect virus proteins.
"While the technology is advancing, antigen tests are generally less sensitive than molecular tests for diagnosing COVID-19 in people who have no symptoms of illness (asymptomatic)," the Public Health Agency of Canada wrote on its website.
However, antigen tests are useful for screening asymptomatic people if they are tested at regular intervals, it pointed out. Serial testing is usually done two to three times over 36 hours.
Serology, or an antibody test, determines if you have antibodies to the virus, though it can't show if you have protective immunity.
With some tests expiring by the end of the year, health officials say you can use expired tests in certain cases.
Health Canada says the manufacturer determines the expiry date, which is on the label.
Health Canada has also granted several shelf-life extensions for . It recommends contacting the manufacturer to confirm the expiry date of those tests.
Despite the extensions, Health Canada said the results of expired tests may not be accurate and Canadians should "use unexpired tests and follow the provided instructions carefully."
Most can be stored and used for 24 months after their manufacturing dates, according to Francis Martel from the communications department at Quebec's Ministry of Health and Social Services, citing modified guidance by Health Canada.
"As a result, the expiry date indicated on the test kits does not always reflect the actual expiry date," Martel wrote in an email to CTVNews.ca on Wednesday. "Extensions to the shelf life are often issued after a test has been manufactured or distributed."
"In most cases, Health Canada has not reviewed the evidence demonstrating the continued safety and effectiveness of a test beyond its expiry date (whether it is the original or extended expiry date)," Martel added. "As expired test results may be inaccurate, it is recommended that you use unexpired tests."
Expired tests can be safely thrown out with regular household waste, according to the Manitoba government.
Those who are in contact with vulnerable people, are at risk of becoming severely ill or who have never had COVID are encouraged to get a done as soon they develop symptoms.
Provinces and territories are responsible for , including distributing rapid tests, according to Health Canada.
Free rapid tests may be available depending on the province, although some free distribution programs have discontinued because of lower demand and fewer infections.
for more information on testing and where to find test kits in your province or territory.
An Ontario woman is among the dozens of people who have come forward to allege that they were sexually abused by London-based businessman Mohamed Al Fayed, the former chairman and owner of Harrods.
The death toll from an Israeli airstrike on a Beirut suburb has risen to 31, including seven women and three children, Lebanon's health minister said on Saturday.
It is not a great time to be a coffee drinker. In general, coffee bean prices are the highest they've been in more than a decade.
Police have arrested an 18-year-old woman who allegedly stole a Porsche and then ran over its owner in an incident that was captured on video.
Looking after an adult with severe autism can be a full-time job. Ask any parent who has a child severely affected by autism spectrum disorder – it’s a job that can get more difficult as the child becomes an adult.
Advocates have identified the woman who died this week after being shot by police in Surrey, B.C., as a South American refugee who was raising a young daughter.
Since she was a young girl growing up in Vancouver, Ginny Lam says her mom Yat Hei Law made it very clear she favoured her son William, because he was her male heir.
U.S. Vice-President Kamala Harris on Thursday issued a warning to any potential home intruder: 'If somebody breaks in my house, they're getting shot.'
A 15-year-old boy who was the subject of an emergency alert in New Brunswick has been arrested.
An Ontario woman is among the dozens of people who have come forward to allege that they were sexually abused by London-based businessman Mohamed Al Fayed, the former chairman and owner of Harrods.
Advocates have identified the woman who died this week after being shot by police in Surrey, B.C., as a South American refugee who was raising a young daughter.
Three men were injured after trying to subdue a man armed with a knife during afternoon prayers at a Montreal-area mosque Friday afternoon.
The RCMP is seeking the dismissal of three officers who have been suspended from the Coquitlam detachment since June 2021 over allegations of racist, sexist and homophobic comments made in a group chat.
Police have arrested an 18-year-old woman who allegedly stole a Porsche and then ran over its owner in an incident that was captured on video.
Provincial police investigating the death of a cat that was allegedly set on fire in Orillia earlier this week released surveillance video of a person of interest in the case.
The death toll from an Israeli airstrike on a Beirut suburb has risen to 31, including seven women and three children, Lebanon's health minister said on Saturday.
U.S. Vice-President Kamala Harris on Thursday issued a warning to any potential home intruder: 'If somebody breaks in my house, they're getting shot.'
An 11-year-old boy died Monday after subway surfing in New York City. He's the fourth person to die from subway surfing in the city this year.
Kamala Harris blasted Donald Trump as a threat to women's freedoms and their very lives, warning in a speech in the battleground state of Georgia on Friday that Republicans would continue to choke off access to abortion if he returns to the White House.
Lawyers in Britain representing dozens of alleged victims -- including three Canadians -- of Mohamed Al Fayed, the former boss of Harrods, said Friday their clients assert that he was a "monster" who raped and sexually abused young women.
What Cristiana Barsony-Arcidiacono, 49, the Italian-Hungarian CEO and owner of Hungary-based BAC Consulting, says she hasn't done is make the exploding pagers that killed 12 people and wounded more than 2,000 in Lebanon this week.
Foreign Affairs Minister Melanie Joly says close to 45,000 Canadians are in Lebanon, months after warning there is no guarantee Ottawa can evacuate them if the situation deteriorates further.
The federal firearm buyback program has cost taxpayers nearly $67.2 million since it was announced in 2020, but it still hasn't collected a single gun.
The NDP is asking the Competition Bureau to investigate whether Canadian landlords are using the same AI software that sparked an antitrust lawsuit in the United States.
Looking after an adult with severe autism can be a full-time job. Ask any parent who has a child severely affected by autism spectrum disorder – it’s a job that can get more difficult as the child becomes an adult.
Canada is setting aside $151 million for the fight to eradicate polio worldwide. International Development Minister Ahmed Hussen announced the news at a Rotary International conference in Toronto.
Whooping cough is on track to reach a record number of cases in Ontario while infections climb in eastern provinces and decline in Quebec, but experts say trying to predict the course of the highly contagious disease has been especially difficult this year.
If something looks too good to be true, it might be. That's the message from Saskatchewan horticulturists after customers have come into their stores hoping to buy purple apple trees this month.
The owner of the shuttered Three Mile Island nuclear power plant said Friday that it plans to restart the reactor under a 20-year agreement that calls for tech giant Microsoft to buy the power to supply its data centers with carbon-free energy.
Lebanese authorities on Thursday banned walkie-talkies and pagers from being taken on flights from Beirut airport, the National News Agency reported, after thousands of such devices exploded during a deadly attack on Hezbollah this week.
Sean "Diddy" Combs, who was arrested this week on charges of racketeering conspiracy and sex trafficking, pleaded not guilty Tuesday and was ordered to remain in custody until his federal trial in New York. CNN spoke to several legal experts to try to understand what lies ahead for Combs and for those in his orbit.
Getting a photograph of a rainbow? Common. Getting a photo of a lightning strike? Rare. Getting a photo of both at the same time? Extremely rare, but it happened to a Manitoba photographer this week.
It was the last show for longtime children's TV star Ron (Buck Shot) Barge Friday as hundreds of family, friends and fans attended a public memorial in Calgary.
It is not a great time to be a coffee drinker. In general, coffee bean prices are the highest they've been in more than a decade.
Experts say rising team valuations and the desire to forge a legacy are likely at the heart of what motivated Rogers Communications Inc. executive chair Edward Rogers to bolster the company's portfolio of Toronto professional sports teams.
Boeing said on Friday the head of the company's troubled defence, space and security unit is leaving the planemaker effective immediately.
When Bernard Morissette got a call from Loto-Quebec on Sept. 18 and was asked if he was sitting down, he had no idea what was coming his way.
A new study has found that engaging in creative activities can significantly boost well-being by providing meaningful spaces for expression and achievement.
An anonymous business owner paid off the mortgage for a New Brunswick not-for-profit.
The Winnipeg Blue Bombers have won five in a row. The Edmonton Elks have won five of their last six games. They are the two hottest teams in the West. When they meet Saturday at Commonwealth Stadium, something has to give.
Agreement in principle has been reached to build a new NHL arena at LeBreton Flats has been reached between the Ottawa Senators and the National Capital Commission (NCC), the two sides announced Friday.
Formula One points leader Max Verstappen was ordered to 'accomplish some work of public interest' after uttering an inappropriate word Thursday at the news conference ahead of the Singapore Grand Prix.
General Motors (GM) has issued a recall for 38,000 vehicles for safety risks related to a software glitch, Transport Canada reported in a notice on Wednesday.
Chechen leader Ramzan Kadyrov has accused Tesla CEO Elon Musk of 'remotely disabling' his Cybertruck, which had been sent to the frontline of Russia's war in Ukraine.
An Ontario man says it is 'unfair' to pay a $1,500 insurance surcharge because his four-year-old SUV is at a higher risk of being stolen.
Getting a photograph of a rainbow? Common. Getting a photo of a lightning strike? Rare. Getting a photo of both at the same time? Extremely rare, but it happened to a Manitoba photographer this week.
An anonymous business owner paid off the mortgage for a New Brunswick not-for-profit.
They say a dog is a man’s best friend. In the case of Darren Cropper, from Bonfield, Ont., his three-year-old Siberian husky and golden retriever mix named Bear literally saved his life.
A growing group of brides and wedding photographers from across the province say they have been taken for tens of thousands of dollars by a Barrie, Ont. wedding photographer.
Paleontologists from the Royal B.C. Museum have uncovered "a trove of extraordinary fossils" high in the mountains of northern B.C., the museum announced Thursday.
The search for a missing ancient 28-year-old chocolate donkey ended with a tragic discovery Wednesday.
The Royal Canadian Mounted Police is celebrating an important milestone in the organization's history: 50 years since the first women joined the force.
It's been a whirlwind of joyful events for a northern Ontario couple who just welcomed a baby into their family and won the $70 million Lotto Max jackpot last month.
A Good Samaritan in New Brunswick has replaced a man's stolen bottle cart so he can continue to collect cans and bottles in his Moncton neighbourhood.
The RCMP is seeking the dismissal of three officers who have been suspended from the Coquitlam detachment since June 2021 over allegations of racist, sexist and homophobic comments made in a group chat.
Advocates have identified the woman who died this week after being shot by police in Surrey, B.C., as a South American refugee who was raising a young daughter.
On the day he spoke to one of his largest audiences to date, the leader of the BC Conservatives made an exceptionally misleading statement around a well-publicized funding model for political parties that’s been in place since 2018.
Three people were taken to hospital following a serious collision which shut down Hwy. 48 in Markham late Friday night.
Police have arrested an 18-year-old woman who allegedly stole a Porsche and then ran over its owner in an incident that was captured on video.
The parents of a teenager who died after allegedly consuming the poisonous products of a Mississauga man are now suing him, as well as several doctors involved in her care.
The man charged with fatally stabbing lifelong Banff resident Ethan Enns-Goneau in 2022 has been convicted of second-degree murder.
Environment Canada issued a frost advisory for Calgary late Friday afternoon.
It was the last show for longtime children's TV star Ron (Buck Shot) Barge Friday as hundreds of family, friends and fans attended a public memorial in Calgary.
Agreement in principle has been reached to build a new NHL arena at LeBreton Flats has been reached between the Ottawa Senators and the National Capital Commission (NCC), the two sides announced Friday.
For years, the commute to Ottawa's west end was one of the biggest complaints for attending fans. But those who live in Kanata and in the immediate LeBreton area say the move would be a big change their respective neighbourhoods.
Ottawa police are investigating a shooting downtown Friday afternoon.
Montrealers can get used to taking a stroll on several car-free streets during the summer in the years to come thanks to a new commitment from the city.
Three men were injured after trying to subdue a man armed with a knife during afternoon prayers at a Montreal-area mosque Friday afternoon.
Allrem, a Quebec company. wants to open up Canada to the Bare Knuckle Fighting Championship.
Two Edmonton Police Service officers have been criminally charged in connection with an assault.
Roughly 100 people gathered in an Edmonton intersection on Friday in support of – and against – the 1 Million March for Children.
The Fairmont Jasper Park Lodge announced Friday it is now accepting reservations from guests for accommodations beginning Oct. 1.
A 15-year-old boy who was the subject of an emergency alert in New Brunswick has been arrested.
Halifax Regional Police warned the public of a series of high-value thefts targeting retail stores Friday.
A Nova Scotia family is continuing a lighthouse-keeping legacy in River Bourgeois.
The search for a missing six-year-old boy in Shamattawa is continuing Friday as RCMP hope recent tips can help lead to a happy conclusion.
While slang may come and go, experts say the phenomenon behind them, which constantly churns out brand-new bon mots, is as old as language itself.
A plane approaches the grass runway at Harv’s Air School south of Steinbach. Nothing is getting in the way of a clear, smooth landing, but owner Harv Penner worries, that could soon change.
Cole Haas is more than just an avid fan of the F.W. Johnson Wildcats football team. He's a fixture on the sidelines, a source of encouragement, and a beloved member of the team.
Regina police are responding to a collision involving a motorcycle on Friday evening.
Five Regina schools were placed into lockdown or secure the building mode following a report of a weapons investigation at Miller High School on Friday.
Protests were held in front of Kitchener City Hall on Friday, both for and against LGBTQ2S+ inclusive education and queer rights in schools.
The provincial government is considering new rules to restrict a municipality’s ability to install new bike lanes if it means traffic lanes would be removed.
A new scam is being reported in communities across the country.
Hospital beds in hallways, supply shortages in the neonatal intensive care unit, and operating rooms being put on hold are some of the concerns nurses are voicing, according to the Saskatchewan Union of Nurses (SUN).
The Saskatchewan RCMP major crimes unit is investigating after a 29-year-old man died in hospital.
A garage fire in Saskatoon’s Willows neighbourhood on Friday narrowly missed igniting an attached home, according to the fire department.
Emergency crews in northern Ontario found the bodies of four people inside a home where a fire broke out Thursday night.
Police have arrested an 18-year-old woman who allegedly stole a Porsche and then ran over its owner in an incident that was captured on video.
A Brampton driver, 27, was charged this week when northern Ontario police stopped the SUV he was driving on Highway 17 after a reported shooting and found more than $100,000 in cash.
A London man is half a million dollars richer after winning a Lotto Max draw on August 13.
Fall is technically officially arriving this weekend, and there are a couple of things you should be thinking about.
A man is in hospital with life threatening injuries following a collision between a motorcycle and a vehicle on Friday afternoon.
Two men from Barrie have been charged after a deadly shooting at a park in Keswick on Wednesday.
Provincial police investigating the death of a cat that was allegedly set on fire in Orillia earlier this week released surveillance video of a person of interest in the case.
A jury has found a Barrie man guilty of second-degree murder for the stabbing death of a man at a Banff bar two years ago.
The Special Investigations Unit (SIU) is searching for the occupants of a vehicle caught on security cameras during a fatal police-involved shooting on Goyeau Street.
Windsor police say a 25-year-old mother has been charged with the drowning death of her 5-year-old child in the family’s backyard pool.
The final phase of investigation in downtown Wheatley is nearing completion over three years after a major gas explosion.
A home has been transformed for the benefit of a B.C. neighbourhood, by a man who was transformed by the caring of his community.
When the federal government announced all open net fish farms on the British Columbia coast need to be out of the water by 2029, it also promised to produce a draft transition plan by the end of July. It missed that target by seven weeks.
New Democrat Leader David Eby has launched his British Columbia election campaign a day early, making the key battle ground of Surrey his first stop.
A pair of runaway pigs are in the custody of an animal sanctuary in the Okanagan after evading police and volunteers for hours earlier this week.
The Red Bridge, a historic landmark in Kamloops, B.C., was completely destroyed by fire early Thursday morning.
Animal protection officers in British Columbia have rescued three pit bulls – including one that gave birth to 10 puppies – from a rat-infested home in Kelowna.
After a summer of preparation, the Lethbridge Hurricanes are ready to open the 2024-25 season.
As a new semester is underway, Lethbridge Polytechnic and the University of Lethbridge say the number of students on campus is on the rise.
A Lethbridge resident is facing charges after police seized drugs and weapons at a traffic stop for bicycle equipment violations.
A 26-year-old driver from Surrey, B.C., has been charged with three counts of criminal negligence causing death and bodily harm in a crash that killed two youths in northern Ontario last year.
Ontario Provincial Police say three suspects from southern Ontario have been charged and drugs worth $300,000 have been seized following a traffic stop Sept. 16.
A Brampton driver, 27, was charged this week when northern Ontario police stopped the SUV he was driving on Highway 17 after a reported shooting and found more than $100,000 in cash.
Newfoundland and Labrador's chief medical officer is monitoring the rise of whooping cough infections across the province as cases of the highly contagious disease continue to grow across Canada.
A 16-year-old biennial event aimed at fostering business in the country's eastern Arctic and northern regions has been cancelled indefinitely as a dispute unfolds between Inuit in Canada and a Labrador group claiming to share their heritage.
Jim Lester’s farm hopped on the cow-cuddling trend in early August, and his time slots have been pretty well sold out ever since.
The Shopping Trends team is independent of the journalists at Â鶹ӰÊÓ. We may earn a commission when you use our links to shop. Read about us.
