Manitoba has confirmed its first case of avian influenza in domestic birds for 2024 at a commercial poultry operation in Portage la Prairie.
The Canadian Food Inspection Agency said the viral infection was detected on Nov. 26. Similar cases have previously been detected in the province in 2022 and 2023.
CFIA has set a primary control zone in the area where the disease was detected.
Comments closedCalifornia Gov. Gavin Newsom on Wednesday declared a state of emergency to boost the state’s response to the avian flu, which has infected more than 600 dairy herds and 34 people in the state amid a national outbreak that began in the spring.
The proclamation gives state and local agencies additional flexibility on staffing, contracting and other rules to support the H5N1 response, according to a statement from the governor’s office.
A person in Louisiana has the first severe illness caused by bird flu in the U.S., health officials said Wednesday.
The patient had been in contact with sick and dead birds in backyard flocks, the U.S. Centers for Disease Control and Prevention (CDC) said. Agency officials didn’t immediately detail the person’s symptoms.
Previous illnesses in the U.S. had been mild and the vast majority had been among farm workers exposed to sick poultry or dairy cows.
Comments closedIf the world finds itself amid a flu pandemic in a few months, it won’t be a big surprise. Birds have been spreading a new clade of the H5N1 avian influenza virus, 2.3.4.4b, around the world since 2021. That virus spilled over to cattle in Texas about a year ago and spread to hundreds of farms across the United States since. There have been dozens of human infections in North America. And in some of those cases the virus has shown exactly the kinds of mutations known to make it better suited to infect human cells and replicate in them.
No clear human-to-human transmission of H5N1 has been documented yet, but “this feels the closest to an H5 pandemic that I’ve seen,” says Louise Moncla, a virologist at the University of Pennsylvania. “If H5 is ever going to be a pandemic, it’s going to be now,” adds Seema Lakdawala, a flu researcher at Emory University.
Comments closedScientists from the Scripps Research Institute are reporting that it would take just a single mutation in the version of bird flu that has swept through U.S. dairy herds to produce a virus adept at latching on to human cells, a much simpler step than previously imagined.
To date, there have been no documented cases of one human passing avian influenza to another, the Scripps scientists wrote in their paper, which was published Thursday in the journal Science. The mutation they identified would allow the virus to attach to our cells by hitching itself to a protein on their surface, known as the receptor.
Comments closedContent warning: This article contains depictions of animal suffering and inhumane treatment of animals.
A teen in British Columbia recently became critically ill after becoming infected with H5N1. H5N1 is a highly pathogenic strain of bird flu.
Outbreaks of avian influenza, or bird flu, in livestock and flocks on industrial-scale chicken and dairy farms — so-called factory farms — in the United States are raising alarm bells for public health across the world.
Mainstream commercial animal agriculture is conducted in an intensive way in often cramped and unhygienic environments. These conditions are ideal for new viruses to jump from animals to humans.
Comments closedThe UK Health Security Agency (HSA) today announced a contract with CSL Seqirus to buy more than 5 million doses of human H5 avian flu vaccine to prepare for a potential influenza pandemic.
In a statement, the HSA said the vaccine will be based on a current H5 strain and is part of a longer-term plans to ensure access to vaccines for a wider range of pathogens that have pandemic potential.
Comments closedA British Columbia teenager who got sick with bird flu two weeks ago did not infect any people or animals they were in contact with while infectious, according to provincial health officer Dr. Bonnie Henry.
The B.C. teenager was admitted to BC Children’s Hospital on Nov. 8 and remains in critical condition, although they have made some progress over the last few days and their care team is “hopeful that they will recover,” Henry said at a press conference Tuesday.
Because there have been no new cases and there are no new leads, the public health investigation will be closed for now, Henry said.
Comments closedThe teenager who is infected with the first human case of H5N1 avian influenza acquired in Canada remains in critical care at BC Children’s Hospital, officials said Tuesday.
Speaking at a news conference in Victoria, provincial health officer Dr. Bonnie Henry said the young person is stable, but still very sick and on a respirator.
Comments closedThe California Department of Public Health (CDPH) today said tests have identified a suspected avian flu infection in a child from Alameda County who had mild upper respiratory symptoms and no known contact with infected animals.
If confirmed, the case would mark the second avian flu infection in a child in North America from a yet undetermined source. Last week, health officials in Canada reported an H5N1 infection in a previously healthy British Columbia teen who is hospitalized in critical condition.
Comments closedThe teenager hospitalized with bird flu in British Columbia, Canada, may have a variation of the virus that has a mutation making it more transmissible among people, early data shows – a warning of what the virus can do that is especially worrisome in countries such as the US where some H5N1 cases are not being detected.
The US “absolutely” is not testing and monitoring bird flu cases enough, which means scientists could miss mutated cases like these, said Richard Webby, a virologist at St Jude children’s research hospital’s department of infectious diseases.
Comments closedThe genetic sequence of the H5N1 bird flu virus that infected a teenager in British Columbia shows that the virus had undergone mutational changes that would make it easier for that version of H5N1 to infect people, scientists who have studied the data say.
There’s currently no evidence the teenager, who remains in critical condition in hospital, infected anyone else. If that’s the case, it is likely this mutated version of the virus would die out when the teen’s illness resolves. The source of the teen’s infection has not been determined, so it’s impossible to know for sure if the mutations were in the virus that infected him or her. But scientists think it is more likely that the mutations developed during the course of his or her infection.
Comments closedA Canadian teenager who is in critical condition after contracting H5N1 bird flu was infected with a version of the virus that is different from the one circulating in dairy cattle in the United States, Canadian authorities announced Wednesday.
The National Microbiology Laboratory in Winnipeg confirmed the infection was indeed caused by the H5N1 virus. But genetic sequencing showed that it is of a genotype that has been found in wild birds, not the version that has been circulating in dairy cattle in the U.S.
Comments closedFederal health officials have confirmed that a B.C. teen who is currently in hospital has Canada’s first human case of H5N1 avian flu.
Testing at the national microbiology labaratory in Winnipeg confirmed the case Wednesday, according to the Public Health Agency of Canada.
Comments closedCarolyn Law didn’t think much of it when a snow goose landed in her Richmond, B.C., backyard, on Halloween.
But hours later it had barely moved. Then it started bobbing its head repeatedly. About eight hours after she first saw the bird, it rolled over, began convulsing and died.
Comments closedA British Columbia (BC) teen from the Fraser Health region who was hospitalized with an earlier announced presumptive positive H5 avian flu infection is in critical condition, the province’s top health official said today.
In a media briefing streamed live on Canada’s Global News, Bonnie Henry, MD, BC’s health officer, shared the latest investigation findings, noting that the patient’s symptoms began on November 2, and he or she was seen that day at a hospital emergency room. She said initial symptoms included conjunctivitis, fever, and cough.
Comments closedB.C.’s provincial health officer says the teenager who has tested positive for bird flu is in critical condition in B.C. Children’s Hospital.
Dr. Bonnie Henry says the teenager, who has the first presumptive human case of bird flu contracted in Canada, was admitted to hospital late Friday. B.C. tests last week confirmed the teenager has the virus, but are waiting confirmation from a national laboratory in Winnipeg.
Comments closedBritish Columbia health officials are investigating what’s believed to be Canada’s first human case of avian influenza after a teenager tested presumptively positive for the disease, the Ministry of Health announced Saturday.
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