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Region's top doc outlines good, bad from national antibody testing results – BarrieToday

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Initial results released this week from Canadian research into immunity against COVID-19 show a very low number of people have the antibodies that make them immune to COVID-19.

Canadian Blood Services and the Canadian COVID-19 Immunity Task Force released early results Thursday of 10,000 blood samples tested for the antibody to SARS-CoV-2. 

Fewer than one per cent of the samples of blood tested so far are showing antibodies. 

“We are still learning about COVID-19 immunity, but the results indicate that the vast majority of individuals tested remain vulnerable to infection because very few individuals have antibodies against the virus,” stated the announcement posted to the Canadian Blood Services website. 

The results are based on blood samples collected in May from blood donors in nine of Canada’s provinces. Quebec has its own blood bank and is conducting its own tests for the task force. 

Dr. Charles Gardner, medical officer of health for the Simcoe Muskoka District Health Unit, has been calling for provincial and federal seroprevalence (antibody) testing. 

“The finding of the prevalence of less than one per cent among the 10,000 tests done is in keeping with the findings in other countries,” said Gardner. “However, I would want to know the precise finding and if conclusions could be drawn regarding more local findings, such as within Ontario.” 

Gardner also noted Quebec has had the highest number of cases among Canadian provinces and was not included in the seroprevalence study data released. 

“The very low prevalence indicates that the great majority of Canadians are still vulnerable to the infection,” Gardner said. “It also speaks to the success of the public health measures taken to date to protect the public from infection.” 

The early results serve to further illustrate the need for public health control measures, according to Gardner. Those include physical distancing, hand washing, mask use in indoor public places, and self-isolation, assessment, and testing for those with symptoms. 

The seroprevalence testing done by Canadian Blood Services (CBS) is a portion of the test information being provided to Canada’s Immunity Task Force. 

“Ultimately, the study may help give policy-makers an understanding of the COVID-19 infection rate for different groups and regions in Canada, including those who may have only suffered a mild infection or were asymptomatic to COVID-19 and were eligible for donating blood,” states the CBS website.

However, the study is not yet complete with more testing to be done.

For phase one of the COVID seroprevalence study, CBS will be testing 37,800 donations. The results published so far are from the first 10,000 samples. 

According to the information released with the seroprevalence results by the blood bank, the organization already routinely tests blood donations and has a research program accustomed to seroprevalence work.

“As a blood operator, we are uniquely positioned to help by providing information on the presence of COVID-19 antibodies in a large number of people across Canada relatively quickly,” Dr. Graham Sher, CEO of Canadian Blood Services, said in a release. 

The samples were made anonymous for the seroprevalence study, so any individual donors who test positive for COVID antibodies will not be notified. 

“The purpose of this study is to get a broad sense of how prevalent the disease has been in the Canadian blood-donor population, not to determine the status of individual donors,” states the CBS website. 

Since the samples are coming from blood donors, the seroprevalence testing results from CBS provide insight into a “subset” of the Canadian population. Blood donors are relatively healthy people over the age of 17 and, typically, younger than 65 years old.

According to CBS, the immunity task force will also be collecting data from other sources to help “fill gaps in the data.” 

Gardner is looking forward to seeing a more detailed analysis of the complete data and local findings within Ontario.

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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.

The Canadian Press. All rights reserved.

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

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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.

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

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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.

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