The U.S. Food and Drug Administration has expanded the emergency use authorization of the Pfizer and Moderna COVID-19 vaccines to allow adults age 50 and older to get a second booster as early as four months after their first booster dose of any COVID-19 vaccine.
The move extends the availability of additional boosters to healthy older adults. The FDA had previously allowed second booster shots for anyone 12 years of age or older who was severely immune deficient, starting four months after their first booster.
The US Centers for Disease Control and Prevention is expected to follow with what's known as a permissive recommendation -- a statement that the shots may be used in this age group for those who want them. The agency is not expected to officially recommend the shots, however.
There is general scientific agreement that third doses help strengthen immunity against severe illness from the virus that causes COVID-19. But the science is far from settled on if or even when fourth doses might be needed since the vaccines continue to offer a high degree of protection against COVID-19 hospitalization and death, even as protection against illness wanes.
Much of the evidence examining the safety and effectiveness of a second booster shot comes from Israel, which has been recommending a fourth dose of coronavirus vaccine to adults age 18 and older since the end of January.
In a large study of more than half a million adults over the age of 60, those who received a second booster, or fourth dose, of a COVID-19 vaccine had 78% lower odds of death during the Omicron wave compared to those who had a third shot at least four months earlier. But the numbers of deaths were relatively low in both groups. After 40 days of follow-up, there were 232 total deaths out of nearly 234,000 people who'd only had three doses of the Pfizer-BioNTech vaccine, compared with 92 deaths out of 328,000 people.
A smaller study of health care workers, which included younger adults, found that fourth boosters were safe and restored antibodies to the same levels reached after third doses. But fourth doses were only moderately effective -- about 30 to 40% -- at preventing illness. And most of the workers who got sick still had high viral loads, suggested that they were capable of transmitting the infection to others.
Additional studies from the U.K. show that the antibody boost from a booster dose wanes very quickly, within a matter of weeks. So some experts feel that considering available resources and the diminishing appetite to continue to get more and more boosters, that the United States should wait until there's a clear danger from a new wave of infections to roll out fourth doses.
A $2.14-billion federal loan for an Ottawa-based satellite operator has Canadian politicians arguing about whether American billionaire Elon Musk poses a national security risk.
Twenty-seven year Â鶹ӰÊÓ reporter and anchor John Vennavally-Rao shares his story of what it was like to have an ostomy bag as part of his health-care battle. 'I’m grateful for what it did to extend my life,' he writes in a personal column for CTVNews.ca.
Donald Trump returned to North Carolina on Saturday, stumping in the southern battleground state with direct appeals to women, claiming he would be a better champion for them than U.S. Vice President Kamala Harris, who is vying to become the first female president.
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.
A new study is adding to emerging research showing that exposure to metals such as cadmium, uranium and copper may also be associated with the leading cause of death worldwide, cardiovascular disease.
Unusual flippered feet are making their way into the Saint Lawrence River this weekend. Led by underwater explorer and filmmaker Nathalie Lasselin, volunteer divers are combing the riverbed near Beauharnois in Montérégie to remove hundreds of tires that have been polluting the aquatic environment for decades.
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For some young people, a popular method for getting a quick high is by misusing laughing gas — and lately, that’s in the form of nitrous oxide from products sold by the company Galaxy Gas.
A man is facing numerous drug trafficking charges after Dufferin OPP seized a large assortment of drugs and weapons in Orangeville earlier this week.
A man is facing numerous drug trafficking charges after Dufferin OPP seized a large assortment of drugs and weapons in Orangeville earlier this week.
The London Police Service (LPS) is currently investigating a suspicious death in the east end.
A body has been found in the vicinity where a woman went missing on the Ottawa River near Pembroke, Ont. while kayaking Tuesday night, according to the Ontario Provincial Police (OPP).
A Calgary family on a trip to Chinook Centre experienced the lows and highs last week, when a stuffie went missing.
Unusual flippered feet are making their way into the Saint Lawrence River this weekend. Led by underwater explorer and filmmaker Nathalie Lasselin, volunteer divers are combing the riverbed near Beauharnois in Montérégie to remove hundreds of tires that have been polluting the aquatic environment for decades.
The 75-year-old building, formerly the Waskesiu Chamber of Commerce building, was relocated to the Parks Canada compound on the edge of the townsite.
Donald Trump returned to North Carolina on Saturday, stumping in the southern battleground state with direct appeals to women, claiming he would be a better champion for them than U.S. Vice President Kamala Harris, who is vying to become the first female president.
Sheba, a 50-year-old seal at the Cornish Seal Sanctuary in southwest England, has far surpassed the average lifespan for seals and could be the oldest in captivity in the world.
The more Chelsea Walsh talked to the eccentric fellow American who seemed to pop up in every square and cobblestone street of Ukraine's capital, the more she got creeped out.
Specialist divers surveying the wreckage of the US$40 million superyacht that sank off Sicily in August, killing seven people including British tech tycoon Mike Lynch, have asked for heightened security to guard the vessel, over concerns that sensitive data locked in its safes may interest foreign governments, multiple sources told CNN.
Israel and Hezbollah exchanged fire on Saturday as rescue crews in Beirut searched the rubble of an apartment building that was leveled by an Israeli airstrike that killed at least 37 people, including one of the militant group's senior leaders as well as women and children.
A $2.14-billion federal loan for an Ottawa-based satellite operator has Canadian politicians arguing about whether American billionaire Elon Musk poses a national security risk.
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.
A new study is adding to emerging research showing that exposure to metals such as cadmium, uranium and copper may also be associated with the leading cause of death worldwide, cardiovascular disease.
For some young people, a popular method for getting a quick high is by misusing laughing gas — and lately, that’s in the form of nitrous oxide from products sold by the company Galaxy Gas.
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.
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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.
Kathryn Crosby, who appeared in such movies as 'The 7th Voyage of Sinbad', 'Anatomy of a Murder,' and 'Operation Mad Ball' before marrying famed singer and Oscar-winning actor Bing Crosby, has died. She was 90.fff
'Saturday Night Live' will have a slew of famous faces to help kick off its historic 50th season when the show returns later this month.
The death of the Tragically Hip’s lead singer Gord Downie united fans across Canada in their grief, but in many ways pulled his bandmates apart.
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.
The maker of the popular party game Cards Against Humanity is accusing Elon Musk's SpaceX of trespassing on and damaging a plot of vacant land the company owns in Texas.
The Canadian Food Inspection Agency says a recall of Nutrabolics brand Feed Me Vegan Real Food Protein & Oats bars due to undeclared milk has been expanded.
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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.
Kiefer Sherwood spent several nights last spring chasing Quinn Hughes around the ice and generally pestering the Vancouver Canucks.
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Andre De Grasse, fresh off of winning Olympic gold in the 4x100-metre rally in Paris 2024, has been in Toronto for the latest few weeks as part of the Toronto International Film Festival.
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.
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.
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An anonymous business owner paid off the mortgage for a New Brunswick not-for-profit.
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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.
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A sea lion swam free after a rescue team disentangled it near Vancouver Island earlier this week.
The Vancouver Canucks have signed Finnish goaltender Kevin Lankinen to a one-year contract.
A 23-year-old man has been arrested after one person was found dead at a home in Richmond Hill Saturday morning.
Toronto police say they have now identified a third person who they believe was involved in a shooting that left two men dead in North York earlier this week.
A man is fighting for his life in hospital a day after a vehicle smashed into several others in and around an intersection in Milton before flipping over.
The water coming from your taps might be a bit murky Saturday, but Calgary remains on schedule to end all water restrictions on Sunday.
A Calgary family on a trip to Chinook Centre experienced the lows and highs last week, when a stuffie went missing.
An estimated 8,000 volunteers mobilized across the city Saturday as the Calgary Food Bank went door-to-door collecting food and funds.
A potential move to LeBreton Flats for the Ottawa Senators is still years away, but questions and concerns are already being raised about what to do with the Canadian Tire Centre.
The Taste of Wellington 2024 wraps up Saturday in Ottawa.
A body has been found in the vicinity where a woman went missing on the Ottawa River near Pembroke, Ont. while kayaking Tuesday night, according to the Ontario Provincial Police (OPP).
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.
Unusual flippered feet are making their way into the Saint Lawrence River this weekend. Led by underwater explorer and filmmaker Nathalie Lasselin, volunteer divers are combing the riverbed near Beauharnois in Montérégie to remove hundreds of tires that have been polluting the aquatic environment for decades.
The Edmonton Police Service is looking for a person of interest in connection with a suspicious fire that destroyed a multi-unit building and damaged several townhomes earlier this week.
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Halifax Regional Police warned the public of a series of high-value thefts targeting retail stores Friday.
Pictou County District RCMP is investigating a fatal crash that occurred in Thorburn, N.S., Saturday.
A proposal for additional parking to accommodate upgrades at the Irving Pulp & Paper Mill in Saint John, N.B., would add an estimated 500 parking spots at Wolastoq Park.
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.
A herd of dogs paid visit to patients and residents at Riverview Health Centre during an annual event that lifts spirits and wags tails.
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Fire officials are investigating after a fire completely destroyed the community fridge in the Cathedral neighborhood.
The last two months after losing her daughter Bella have been extremely difficult for Kyla Thomson.
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The Cambridge Professional Fire Fighters’ Association held their annual Muscular Dystrophy Boot Drive on Saturday.
Protests were held in front of Kitchener City Hall on Friday, both for and against LGBTQ2S+ inclusive education and queer rights in schools.
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The 75-year-old building, formerly the Waskesiu Chamber of Commerce building, was relocated to the Parks Canada compound on the edge of the townsite.
Saskatchewan RCMP major crimes unit is investigating after a man’s body was found on Sweetgrass First Nation.
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Ontario’s police watchdog is investigating after an Ontario Provincial Police officer discharged his firearm at a 36-year-old man in near Moonbeam, Ont., on Friday night.
For some young people, a popular method for getting a quick high is by misusing laughing gas — and lately, that’s in the form of nitrous oxide from products sold by the company Galaxy Gas.
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.
A motorcyclist has died following a serious collision that took place in London’s south end on Friday afternoon.
The London Police Service (LPS) is currently investigating a suspicious death in the east end.
The St. Thomas police is asking the public for help locating a missing man.
The Barrie Skateboard Association (BSA) hosted a unique competition at the City's Skate Park on Saturday to celebrate its 25th anniversary, which showcased the park's importance and the growth of skateboarding in the region.
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One person is in hospital after an e-bike crash in Orillia on Thursday.
The Amherstburg Freedom Museum is celebrating a year of festivities in anticipation of its 50th anniversary in 2025.
The St. Clair College golf teams were successful at the Niagara Knights Invitational tournament on Friday.
A LaSalle high school is celebrating its emerald anniversary this weekend, with everyone who has ever walked its halls invited to return.
A man who was found dead behind a curling rink in Nanaimo, B.C., earlier this month was the victim of a homicide, police confirmed.
A sea lion swam free after a rescue team disentangled it near Vancouver Island earlier this week.
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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.
Despite the heavy rain, plenty of muscle turned up for United Way’s annual Pull the Bus fundraiser in Lethbridge Friday.
Lethbridge County has rescinded its fire restriction as a result of the recent cool, wet weathr.
The Lethbridge Hurricanes kicked off the 2024-25 season on a winning note Friday night, defeating the Edmonton Oil Kings 3-1 in a game played at VisitLethbridge.com Arena.
Following an outbreak of COVID-19 on its continuing care floor and just ahead of the flu season, St. Joseph’s General Hospital in Elliot Lake has opted to re-introduce a universal masking policy until further notice.
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.
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.
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