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Canada expanding surveillance, testing milk for H5N1 avian flu amid U.S. dairy cattle outbreak – CBC.ca

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Federal officials say Canada is expanding its surveillance for a dangerous form of avian flu amid a growing outbreak of H5N1 in U.S. dairy cattle, with monitoring efforts now set to include testing of milk being sold on store shelves.

The Friday night update comes just days after leading Canadian researchers questioned the country’s response to the unprecedented spread of the virus among cows south of the border — including the discovery of viral fragments in processed milk.

“The Canadian Food Inspection Agency (CFIA), the Public Health Agency of Canada (PHAC) and Health Canada are monitoring this situation closely and would like to reassure Canadians that commercially sold milk and milk products remain safe to consume,” said the CFIA in its statement.

Milk from dairy cows in Canada goes through pasteurization before being sold, a heating process that neutralizes harmful pathogens like bacteria and viruses. 

As noted by the CFIA, the U.S. Food and Drug Administration recently announced its latest research shows  pasteurization is indeed effective in inactivating H5N1, even when fragments of the virus remain.

The CFIA had previously said that the agency was not testing any milk, but announced on Friday that Canada will now be “conducting enhanced testing of milk at the retail level” to look for any viral fragments that could signal cases appearing in dairy cattle here.

This form of avian flu is a reportable disease in Canada, the statement continued, which means anyone suspecting a case in animals, including poultry or livestock, must report it to the CFIA. Confirmed and probable human cases are also reportable to PHAC.

While Canada hasn’t had any human cases to date, tens of millions of birds have been infected by the virus, including poultry on various Canadian farms.

In its statement, the CFIA said Canada is also expanding its surveillance to manage the “possible emergence” of avian flu in cows by requiring negative test results for lactating dairy cattle being imported from the United States to Canada and “facilitating the voluntary testing of cows” that aren’t presenting with any symptoms.

Speaking to CBC News in recent days, multiple Canadian scientists have also called for random testing of farm workers, wastewater surveillance and other proactive measures to try to catch potential H5N1 infections as quickly as possible.

WATCH | Bird flu surveillance in dairy cows lacking in Canada, scientists warn:

Bird flu surveillance in dairy cows lacking in Canada, scientists warn

2 days ago

Duration 2:01

As the U.S. deals with an unprecedented outbreak of bird flu in dairy cattle, scientists say Canada must do more to monitor the spread of H5N1.

Several did commend the CFIA for taking more action through its latest update.

“All the data from the [U.S.] so far suggests that this outbreak has been spreading quietly in cattle for months and has spilled back into birds and other species, including humans. It’s critical that we make every effort to determine if we are facing a similar situation in Canada,” said Angela Rasmussen, a virologist with the University of Saskatchewan’s Vaccine and Infectious Disease Organization.

“Active surveillance and safeguarding our food safety is critical to containing this emerging threat and I’m relieved that both CFIA and PHAC agree that is a priority.”

Dr. Isaac Bogoch, an infectious diseases specialist with the University Health Network in Toronto, also called Friday’s announcement “a step in the right direction.”

“Given the significance of H5N1, I would have thought there would be a more rapid, proactive, and broad approach to case detection,” he said.

A white bird lays dead on a sandy beach.
A dead gannet in Point Lance, N.L., during an outbreak of avian influenza. While Canada hasn’t had any human cases of H5N1 to date, tens of millions of birds have been infected by the virus, including poultry on various Canadian farms. (Patrick Butler/Radio-Canada)

So far, avian influenza has been reported in 36 dairy cattle herds across nine U.S. states, plus one human case in Texas linked to the outbreaks, though scientists say there are likely more animal and human infections that haven’t yet been identified.

“If the CFIA becomes aware of any potential food safety or animal health risks, immediate actions will be taken to help protect Canada’s food supply and livestock,” the agency’s statement noted.  

“These measures complement the existing comprehensive and integrated approach to human surveillance of influenza in Canada, and will inform and support the range of ongoing preparation actions undertaken by PHAC with its partners to protect human health.”

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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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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.

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