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COVID: Omicron subvariants could fuel bump in cases – CTV News

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As the summer approaches and COVID-19 health measures continue to loosen, experts say the rise of subvariants of Omicron could lead to another spike in cases in Canada.

The subvariants of BA.4 and BA.5 have been fueling growing case counts in the U.S., Europe and elsewhere around the world. In Canada, the two variants made up 3.9 per cent and 6.5 per cent of COVID-19 cases, respectively, according to samples collected the week of May 29. Cases of BA.2.12.1, another growing subvariant, also represent 40.5 per cent of cases.

At a media briefing on Friday, Canada’s Chief Medical Officer of Health Dr. Theresa Tam noted the growth of these subvariants, saying that they have “demonstrated a growth advantage in additional immune escape” over previous variants, citing waning vaccine immunity and viral evolution

“We do not expect our progress to be linear, therefore maintaining readiness for a potential resurgence that could result in severe impact is our best advantage,” Tam told reporters.

Toronto-based emergency room physician Dr. Kashif Pirzada says the rise of these subvariants shows how quickly the virus can mutate.

“It’s evolving to beat our immunity and our vaccine and it looks like we’re going to be in a world where we have waves every two to three months,” he told CTV News Channel on Saturday. “The crazy thing is that immunity from previous infection, even if you got Omicron in the January wave or in the last month — it may not protect you from this variant because it’s different enough that your immunity won’t be strong enough for it.”

In Portugal, where the BA.5 variant made up 87 per cent of cases as of May 30, hospitalizations increased as a result. Last week, the Centers for Diseases Control and Prevention announced that BA.4 and BA.5 now make up 8.3 per cent and 13.3 per cent of COVID-19 cases in the U.S., respectively.

“If you look at countries like Portugal, which got the BA.5 variant in the last two weeks — that’s one of the highest vaccination rates in the world and you’re seeing a spike in hospitalizations there. So, that that could be a warning for us,” said Pirzada. “Hopefully, summer weather here and schools being let out now will keep us from going that badly, but it means that we have to be cautious.”

Currently, Canada is seeing low rates of cases and hospitalizations and Tam said the Public Health Agency of Canada is feeling “cautiously optimistic about the current trajectory.”

“If you compare where we’re at now, versus where we were, you know, a month and two months ago, we’re doing so much better,” infectious diseases specialist Dr. Isaac Bogoch told CTV News on Friday.

However, Bogoch believes there may be a “summer bump in cases, depending on how this plays out,” citing wastewater data in Ontario showing a recent uptick in SARS-CoV-2 concentrations.

“It’s showing a slight bump in in the signal, and I don’t think it’s just a flicker,” he said. “I think it’s the real deal because if you look at the various areas of Ontario and this is not geographically unique to one area. You’re seeing that signal in multiple geographic regions.”

With files from CTV National News Toronto Correspondent John Vennavally-Rao.

Wastewater data in Ontario is showing a recent uptick in SARS-CoV-2 concentrations since the start of June. (Ontario Science Table)

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Dolphins will bring in another quarterback, while Tagovailoa deals with concussion

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MIAMI GARDENS, Fla. (AP) — The Miami Dolphins will bring in another quarterback while starter Tua Tagovailoa deals with his latest concussion, coach Mike McDaniel said Friday.

For now, Skylar Thompson will be considered the Dolphins’ starter while Tagovailoa is sidelined. Tagovailoa left Thursday night’s 31-10 loss to Buffalo in the third quarter with the third known concussion of his NFL career, all of them coming in the last 24 months.

“The team and the organization are very confident in Skylar,” McDaniel said.

McDaniel said the team has not made any decision about whether to place Tagovailoa on injured reserve. Tagovailoa was expected at the team facility on Friday to start the process of being evaluated in earnest.

“We just have to operate in the unknown and be prepared for every situation,” McDaniel said, noting that the only opinions that will matter to the team will be the ones from Tagovailoa and the medical staff.

McDaniel added that he doesn’t see Tagovailoa playing in Miami’s next game at Seattle on Sept. 22.

“I have no idea and I’m not going to all of a sudden start making decisions that I don’t even see myself involved in the most important parts of,” McDaniel added. “All I’m telling Tua is everyone is counting on you to be a dad and be a dad this weekend. And then we’ll move from there. There won’t be any talk about where we’re going in that regard … none of that will happen without doctors’ expertise and the actual player.”

Tagovailoa was 17 for 25 passing for 145 yards, with one touchdown and three interceptions — one of which was returned for a Buffalo score — when he got hurt. Thompson completed eight of 14 passes for 80 yards.

Thompson said he feels “fully equipped” to run the Dolphins’ offense.

“What’s going to lie ahead, who knows, but man, I’m confident, though,” Thompson said after Thursday’s game. “I feel like I’m ready for whatever’s to come. I’m going to prepare and work hard and do everything I can to lead this team and do my job.”

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Unifor says workers at Walmart warehouse in Mississauga, Ont., vote to join union

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TORONTO – Unifor says workers at a Walmart warehouse in Mississauga, Ont., have voted to join the union.

The union says it’s Walmart’s first warehouse to unionize in Canada.

Unifor national president Lana Payne says the employees stood up for their rights and the union is excited to get to work on their first collective agreement.

Unifor’s campaign at Walmart’s facility began in December 2023.

The vote was held from Sept. 10 to 12.

Unifor represents 315,000 workers across the country.

This report by The Canadian Press was first published Sept. 13, 2024.

The Canadian Press. All rights reserved.



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Canada to donate up to 200,000 vaccine doses to combat mpox outbreaks in Africa

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The Canadian government says it will donate up to 200,000 vaccine doses to fight the mpox outbreak in Congo and other African countries.

It says the donated doses of Imvamune will come from Canada’s existing supply and will not affect the country’s preparedness for mpox cases in this country.

Minister of Health Mark Holland says the donation “will help to protect those in the most affected regions of Africa and will help prevent further spread of the virus.”

Dr. Madhukar Pai, Canada research chair in epidemiology and global health, says although the donation is welcome, it is a very small portion of the estimated 10 million vaccine doses needed to control the outbreak.

Vaccine donations from wealthier countries have only recently started arriving in Africa, almost a month after the World Health Organization declared the mpox outbreak a public health emergency of international concern.

A few days after the declaration in August, Global Affairs Canada announced a contribution of $1 million for mpox surveillance, diagnostic tools, research and community awareness in Africa.

On Thursday, the Africa Centres for Disease Control and Prevention said mpox is still on the rise and that testing rates are “insufficient” across the continent.

Jason Kindrachuk, Canada research chair in emerging viruses at the University of Manitoba, said donating vaccines, in addition to supporting surveillance and diagnostic tests, is “massively important.”

But Kindrachuk, who has worked on the ground in Congo during the epidemic, also said that the international response to the mpox outbreak is “better late than never (but) better never late.”

“It would have been fantastic for us globally to not be in this position by having provided doses a much, much longer time prior than when we are,” he said, noting that the outbreak of clade I mpox in Congo started in early 2023.

Clade II mpox, endemic in regions of West Africa, came to the world’s attention even earlier — in 2022 — as that strain of virus spread to other countries, including Canada.

Two doses are recommended for mpox vaccination, so the donation may only benefit 100,000 people, Pai said.

Pai questioned whether Canada is contributing enough, as the federal government hasn’t said what percentage of its mpox vaccine stockpile it is donating.

“Small donations are simply not going to help end this crisis. We need to show greater solidarity and support,” he said in an email.

“That is the biggest lesson from the COVID-19 pandemic — our collective safety is tied with that of other nations.”

This report by The Canadian Press was first published Sept. 13, 2024.

Canadian Press health coverage receives support through a partnership with the Canadian Medical Association. CP is solely responsible for this content.

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