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Agence France-Presse

The World Health Organization called for vigilance after the recent detection of bird flu in mammals, but tried to calm fears that large-scale human outbreaks could be looming.
“The recent spillover to mammals needs to be monitored closely,” the UN health agency’s chief Tedros Adhanom Ghebreyesus told reporters on Wednesday, stressing that “for the moment, WHO assesses the risk to humans as low”.
Since late 2021, Europe has been gripped by its worst-ever outbreak of bird flu, with North and South America also experiencing severe outbreaks.
This has led to the culling of tens of millions of domestic poultry worldwide, many with the H5N1 strain of the virus. The global outbreak is also responsible for the deaths of tens of thousands of wild birds.

"WHO is working with national authorities and partners to monitor the situation closely, and to study cases of #H5N1 infection in humans when they occur."-@DrTedros
— World Health Organization (WHO) (@WHO) February 8, 2023

The recent detection of the disease in a number of mammals, including foxes, otters, minks, sea lions and even grizzly bears, has sparked growing concern that humans could be more at risk.
Tedros noted that since the virus first emerged in 1996, “We have only seen rare and non-sustained transmission of H5N1 to and between humans.” But, he cautioned, “We cannot assume that will remain the case, and we must prepare for any change in the status quo”.
Tedros called on countries to “strengthen surveillance in settings where humans, farmed or wild animals interact”.
“WHO is also continuing to engage with manufacturers to make sure that if needed, supplies of vaccines and antivirals would be available for global use,” he said.
Indian boy dies of bird flu in country’s first such case of human death
Over the last two decades, there have been 868 confirmed H5N1 cases in humans with 457 deaths, according to the WHO. There were four confirmed human cases and one death last year.
Last month, Ecuador reported South America’s first case of the A(H5) bird flu virus in a human – a nine-year-old girl who was in contact with backyard poultry.
The girl’s condition was “improving”, WHO emergencies director Michael Ryan told reporters, adding that so far, there was no indication that other people had been infected.
That reflects the usual pattern when people are infected, explained Sylvie Briand, WHO epidemic and pandemic preparedness and prevention director.


“The transmission from animals to humans is rare, and when it infects humans, further transmission between humans is not easy, because the virus is not well-adapted to the human population,” she said.
But, she warned: “We need to be vigilant to make sure that spread in animals is contained”.
“The more the virus circulates in animals, the higher is the risk for humans as well,” she said, adding that this was “because the virus circulating in animals can evolve to forms that are more transmissible”.
Boy in China becomes first recorded human case of H3N8 bird flu strain
Ryan agreed that intense spread among small mammals “creates the chance that this virus can evolve”.
But, he stressed: “Our job is to stay one step ahead.
“Protecting humans isn’t only about managing viruses in humans. It’s about managing viruses in the animal kingdom and especially at that animal-human interface,” he said, urging concerted action.
“Risks can be reduced. People should not be alarmed.”


Teen in critical condition with Canada’s first presumptive human case of bird flu

US spots 1st H5N1 bird flu case in a pig, raising concern for humans

Australia’s bird flu outbreak affects McDonald’s breakfasts: ‘ensure there’s eggs on shelves’

WHO confirms first fatal human case of bird flu A(H5N2) subtype

Bird flu viruses

As bird flu spreads to mammals, WHO urges vigilance but no alarm

Scientists at the Paracas National Reserve inspect a dead sea lion in January while deploying a monitoring and surveillance protocol for cases of birds and sea lions affected by avian influenza in the Ica region, Peru. Photo: Peruvian National Wildlife Areas Service via AFP

‘Extremely rare’ case of bird flu in human detected in England

About a million birds have been culled in Britain recently, mostly at poultry farms. Photo: Shutterstock

More penguins dying from bird flu at South Africa’s Cape Town beach colony

A group of endangered African penguins walk on a beach at Cape Town’s famous Boulders penguin colony in South Africa on September 22, 2022. Photo: Reuters

Visitors stands at a viewing point at the Boulders penguin colony, a popular tourist attraction and an important breeding site for African penguins in Cape Town, South Africa on Thursday. Photo: Reuters

A group of penguins stand on a rock at the Boulders penguin colony in Cape Town, South Africa. Photo: Reuters

Russia detects world’s first case of H5N8 bird flu in humans

Seven workers at a poultry plant in southern Russia were infected with the H5N8 strain. File photo: Shutterstock

News

World

The UN health body says the risk to humans is low ‘for the moment’, though the spillover to animals like foxes, sea lions and bears needs to be watched closely
Tens of millions of birds have been culled worldwide amid severe outbreaks in Europe, North and South America


The UN health body says the risk to humans is low ‘for the moment’, though the spillover to animals like foxes, sea lions and bears needs to be watched closely.


Disease

World Health Organization (WHO)

Animals

As bird flu spreads to mammals, WHO urges vigilance but no alarm

The UN health body says the risk to humans is low ‘for the moment’, though the spillover to animals like foxes, sea lions and bears needs to be watched closely Tens of millions of birds have been culled worldwide amid severe outbreaks in Europe, North and South America

The UN health body says the risk to humans is low ‘for the moment’, though the spillover to animals like foxes, sea lions and bears needs to be watched closely

Tens of millions of birds have been culled worldwide amid severe outbreaks in Europe, North and South America