Canadian scientists monitoring how vaccines will work against latest COVID variant | Canada News Media
Connect with us

Health

Canadian scientists monitoring how vaccines will work against latest COVID variant

Published

 on

Federal scientists will be monitoring global research to determine the effectiveness of updated vaccines against the latest COVID-19 variant, Health Canada and the Public Health Agency of Canada say.

Canada’s first known case of the Omicron variant BA.2.86 was detected this week in British Columbia as the country became the seventh in the world to report its presence.

Health Canada is currently reviewing applications for Moderna and Pfizer-BioNTech’s new mRNA vaccines, developed against the dominant XBB.1.5 variant ahead of a vaccination campaign set for the fall.

As of this week, there were only 13 sequences of the highly mutated variant BA. 2.86 available to analyze across six other countries — four in Denmark, three in the United States, two in Portugal, two in South Africa, one in Israel, and one in the United Kingdom, Health Canada and PHAC said in an email.

“Scientists are looking for signs that BA.2.86 lineages would change disease severity or spread, or impact the effectiveness of diagnostic tests, vaccines or treatments for COVID-19,” they said.

“As this new variant was just detected in Canada, it is difficult to have an understanding of its prevalence. As laboratories’ and clinical data is reported to PHAC, a more accurate picture will begin to emerge.”

COVID-19 cases involving the XBB.1.5 variant are currently at a low to moderate level, with stable or increasing trends in all reporting provinces and territories, Health Canada and PHAC said.

However, a hospital in Windsor, Ont., and another in Montague, P.E.I., announced outbreaks of the illness this week.

The BA.2.86 variant was detected in a B.C. resident who had not recently been outside the country, provincial authorities said this week.

Provincial health officer Dr. Bonnie Henry and Health Minister Adrian Dix said in a joint statement that there doesn’t seem to be increased illness severity with the strain and the infected person was not in hospital.

Federal figures show that, as of mid-June, 80.5 per cent of Canadians had received their primary series of COVID vaccines. The highest uptake, at nearly 92 per cent, was in Newfoundland and Labrador. The lowest, at 75.5 per cent, was in the Northwest Territories, followed by Alberta, where 76 per cent of people were vaccinated.

Dawn Bowdish, an immunologist at McMaster University in Hamilton, said it’s understandable that people are tired of COVID-19 amid a mostly normal return to social activities, but the mutating virus puts vulnerable populations, including the elderly, most at risk of infection.

However, only about 21 per cent of Canadians aged 80 and over have received boosters or completed a primary vaccination series in the last six months, she said.

The National Advisory Committee on Immunization (NACI) has recommended Canadians roll up their sleeves for a booster in the fall if it has been at least six months since their last dose or COVID-19 infection.

Bowdish said anyone starting chemotherapy or having major surgery may consider getting a booster before the reformulated vaccines are available but it’s otherwise best to wait.

Parts of the Southern Hemisphere have faced a triple threat during its respiratory season, which usually starts in April and ends in September in that region.

“They had a lot of influenza, they had a lot of RSV. They had a lot of COVID and they reported a lot of health-care worker absences, which means care for all things is impaired,” she said of Australia’s recent experience.

However, Australians had access to the current bivalent COVID vaccines, not the reformulated ones.

“What I worry about is it doesn’t need to be any worse or as bad as last year to still majorly impact health care for Canadians,” Bowdish said of a respiratory season that saw shortages of children’s pain relievers and long waits in emergency rooms.

Bowdish is hoping Canadians won’t hesitate to get a booster this fall, when they could be vaccinated against influenza at the same time.

For people over 60, a vaccine for RSV, or respiratory syncytial virus, may also be available. Earlier this month, Health Canada announced the approval of a vaccine for RSV for those aged 60 and up, but it’s up to the provinces and territories to decide if and when Arexvy will be included in their vaccination programs.

Eric Arts, a virologist at Western University in London, Ont., noted many Canadians are getting to the one-year mark since their last booster so it will be important to get vaccinated in the fall.

The updated vaccines’ formula will be a minor change from current vaccines but with better protection against circulating Omicron variants, he said.

“Hopefully, the bureaucracy will be fast to get them out.”

This report by The Canadian Press was first published Sept. 1, 2023.

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

Camille Bains, The Canadian Press

 

Source link

Continue Reading

Health

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

Published

 on

 

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.

The Canadian Press. All rights reserved.

Source link

Continue Reading

Health

How many Nova Scotians are on the doctor wait-list? Number hit 160,000 in June

Published

 on

 

HALIFAX – The Nova Scotia government says it could be months before it reveals how many people are on the wait-list for a family doctor.

The head of the province’s health authority told reporters Wednesday that the government won’t release updated data until the 160,000 people who were on the wait-list in June are contacted to verify whether they still need primary care.

Karen Oldfield said Nova Scotia Health is working on validating the primary care wait-list data before posting new numbers, and that work may take a matter of months. The most recent public wait-list figures are from June 1, when 160,234 people, or about 16 per cent of the population, were on it.

“It’s going to take time to make 160,000 calls,” Oldfield said. “We are not talking weeks, we are talking months.”

The interim CEO and president of Nova Scotia Health said people on the list are being asked where they live, whether they still need a family doctor, and to give an update on their health.

A spokesperson with the province’s Health Department says the government and its health authority are “working hard” to turn the wait-list registry into a useful tool, adding that the data will be shared once it is validated.

Nova Scotia’s NDP are calling on Premier Tim Houston to immediately release statistics on how many people are looking for a family doctor. On Tuesday, the NDP introduced a bill that would require the health minister to make the number public every month.

“It is unacceptable for the list to be more than three months out of date,” NDP Leader Claudia Chender said Tuesday.

Chender said releasing this data regularly is vital so Nova Scotians can track the government’s progress on its main 2021 campaign promise: fixing health care.

The number of people in need of a family doctor has more than doubled between the 2021 summer election campaign and June 2024. Since September 2021 about 300 doctors have been added to the provincial health system, the Health Department said.

“We’ll know if Tim Houston is keeping his 2021 election promise to fix health care when Nova Scotians are attached to primary care,” Chender said.

This report by The Canadian Press was first published Sept. 11, 2024.

The Canadian Press. All rights reserved.

Source link

Continue Reading

Health

Newfoundland and Labrador monitoring rise in whooping cough cases: medical officer

Published

 on

 

ST. JOHN’S, N.L. – 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.

Dr. Janice Fitzgerald says that so far this year, the province has recorded 230 confirmed cases of the vaccine-preventable respiratory tract infection, also known as pertussis.

Late last month, Quebec reported more than 11,000 cases during the same time period, while Ontario counted 470 cases, well above the five-year average of 98. In Quebec, the majority of patients are between the ages of 10 and 14.

Meanwhile, New Brunswick has declared a whooping cough outbreak across the province. A total of 141 cases were reported by last month, exceeding the five-year average of 34.

The disease can lead to severe complications among vulnerable populations including infants, who are at the highest risk of suffering from complications like pneumonia and seizures. Symptoms may start with a runny nose, mild fever and cough, then progress to severe coughing accompanied by a distinctive “whooping” sound during inhalation.

“The public, especially pregnant people and those in close contact with infants, are encouraged to be aware of symptoms related to pertussis and to ensure vaccinations are up to date,” Newfoundland and Labrador’s Health Department said in a statement.

Whooping cough can be treated with antibiotics, but vaccination is the most effective way to control the spread of the disease. As a result, the province has expanded immunization efforts this school year. While booster doses are already offered in Grade 9, the vaccine is now being offered to Grade 8 students as well.

Public health officials say whooping cough is a cyclical disease that increases every two to five or six years.

Meanwhile, New Brunswick’s acting chief medical officer of health expects the current case count to get worse before tapering off.

A rise in whooping cough cases has also been reported in the United States and elsewhere. The Pan American Health Organization issued an alert in July encouraging countries to ramp up their surveillance and vaccination coverage.

This report by The Canadian Press was first published Sept. 10, 2024.

The Canadian Press. All rights reserved.

Source link

Continue Reading

Trending

Exit mobile version