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    • As BA.4 and BA.5 take hold, experts say a summer wave of COVID-19 is underway

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    As summer festivals get underway across Canada, so too has another wave of COVID-19, experts warn.

    "There is a potential for things to get substantially worse if we're not a little bit careful and don't take some basic steps to try to mitigate the spread of these variants," Dr. Christopher Labos, a Montreal-based epidemiologist and cardiologist, told 麻豆影视.

    The more infectious BA.4 and BA.5 Omicron subvariants are expected to make up a larger share of all COVID-19 cases in Canada.

    Labos says people may be more vulnerable if more time has passed since their last vaccine dose.

    He also noted Canada's provinces and territories have lifted many of their public health restrictions, including masking requirements.

    "If you're going to be indoors with a bunch of other people breathing the same air, I don't know why you wouldn't want to wear a mask at this point, because it's going to prevent the spread of the virus and it's a low-cost, low-risk way to do that," Labos said.

    The Ontario COVID-19 Science Advisory Table estimates that COVID-19 concentrations in wastewater of where they were during the peak of the last Omicron wave in April and could reach those heights in a few weeks.

    "The data that we're looking at now is obviously not the best of news in July. We're seeing significant increases in the wastewater signal," Robert Delatolla, a professor at the University of Ottawa who has done research into wastewater treatment and disease surveillance, told CTV National News.

    Increases in the wastewater signal could serve as a leading indicator for what may come in terms of COVID-19 cases and hospitalizations, .

    "I think it's good in terms of communication so that the public knows, so people can make their own decisions in terms of what they're doing. Whether they want to mask again, whether they're going to go to certain events or not, and if they do those events maybe with masking or without," Delatolla said.

    Meanwhile, staffing shortages in hospitals are adding another strain to the health-care system.

    The matter is expected to be a topic of discussion at the next meeting of Canadian premiers in Victoria this week, with continued calls for the federal government to increase its share of health-care spending.

    With files from 麻豆影视 and The Canadian Press

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    • Weather watchers were treated to an exceptionally rare display on Friday evening as rare cloud formations filled Vancouver skies.

    • For some shoppers it was Nov. 1, but for others the first hints of Christmas - saccharine treats, festive-fragranced candles and gaudily wrapped gift sets - were being noticed in stores long before the final Halloween decor had been cleared.

    • Thousands of people are expected to gather in downtown Vancouver on Monday to observe the city鈥檚 100th Remembrance Day ceremony.

    • Toronto is expected to see an economic boost to the tune of nearly $300 million thanks to Taylor Swift鈥檚 upcoming Eras Tour, which will be making a stop in Canada鈥檚 largest city for a six-show run later this month.

    • One man was transported to hospital early Monday morning after a stabbing in the northwest end of the city, Toronto police say.

    • A pair of 105-mm howitzers bark constantly as they turn plywood tank targets into kindling kilometres away on the windswept landscape of one of Canada's largest military bases.

    • Two semis were among the vehicles involved in a multi-vehicle crash that brought westbound traffic along Stoney Trail Northwest to a standstill on Sunday.

    • More than 700 people danced, ate, and sang to celebrate Diwali Saturday night at the Genesis Centre in northeast Calgary.

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    • An elementary school in Greenfield Park on Montreal鈥檚 South Shore is closed after it was the target of an alleged arson attack.

    • Some 12,000 daycare workers are set to begin their strike action Monday morning.

    • Two vehicles were set on fire in Montreal鈥檚 east end Riviere-des-Prairies neighbourhood.

    • Monday is Remembrance Day, a time to honour armed forces members who have died in the line of duty.

    • Boasting 2,300 square metres of skating space at its new location, Edmonton's Rollers Roller Rink believes it is the largest in Canada.

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    • A pillar in Canada鈥檚 history was honoured in Winnipeg Sunday afternoon, with thousands showing up to pay tribute to the life and legacy of the late Murray Sinclair.

    • Winnipeg police have identified two men involved in a stabbing incident earlier this week.

    • The Winnipeg Blue Bombers whipped the Saskatchewan Roughriders 38-22 in Saturday's CFL West Division final to earn their fifth consecutive trip to the Grey Cup.

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    • It was a somber day at Mosaic Stadium as members of the Saskatchewan Roughriders officially cleaned out their stalls and closed the book on the 2024 season.

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    • A man has been charged after a stabbing at an apartment building in Kitchener.

    • The Guelph Police Service is putting out a warning after two deaths in the downtown area.

    • Two new tributes to Canada鈥檚 veterans have been unveiled at the Elmira Cenotaph.

    • Saskatchewan RCMP are searching for a suspect after a man was seriously injured in a farm-related incident in Montreal Lake.

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    • The Regina Rams claimed the Hardy Cup after a hard fought battle against the Saskatoon Huskies 19-14 on Saturday in the first all Saskatchewan U-Sports western conference final since 2002.

    • CTVNewsNorthernOntario.ca is livestreaming the annual Remembrance Day ceremony at the Sudbury Community Arena starting Monday at 10:30 a.m.

    • Police have arrested a 15-year-old in connection with a break-in and $50,000 in damage done to the Centennial Arena in Elliot Lake in September.

    • Emergency crews responded to the scene on Road 68/Highway 2 east of Thamesford around 7 p.m.

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    • A group of former NHL players faced off against York Regional Police officers in Newmarket Sunday afternoon to raise funds for Special Olympics programs across the province.

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    • The agreed statement of facts was read to the court on Friday in the case of Alex Williams, the 24-year-old jail guard charged last fall with smuggling cannabis and tobacco into Central North Correctional Centre in Penetanguishene.

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    • More details have been released about a police investigation at the Ambassador Bridge that connects Windsor, Ont. and Detroit, MI.

    • An individual is dead following a collision involving a motorcycle in Kingsville.

    • Environment Canada says heavy rain and winds could cause power outages on Vancouver Island as an "intense" storm system is set to hit the B.C. coast Sunday.

    • Six deer were struck by vehicles in six different locations in a six-hour period on B.C. highways on Saturday, according to the transportation ministry.

    • The union for locked-out port workers in British Columbia says the BC Maritime Employers Association cut off talks in less than an hour Saturday, refusing to budge on a final offer that the union has so far rejected.

    • The emergency department at South Okanagan General Hospital in Oliver, B.C., will be closed for 31 hours this weekend, the second such closure in a week and the third since the start of November.

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    • Police have arrested a 15-year-old in connection with a break-in and $50,000 in damage done to the Centennial Arena in Elliot Lake in September.

    • Mayors of the five largest cities in northern Ontario met in North Bay the last two days to discuss a range of critical issues impacting their cities and the region.

    • Residents in the Sault expressed concerns ranging from vandalism to privacy invasions during recent consultations on the city's plan to install automated speed enforcement cameras.

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