Articles on A(H5N1)

Displaying all articles

Cows are milked on a large carousel at an industrial-scale dairy in Pickett, Wis., in December 2019. (AP Photo/Morry Gash)

B.C. youth H5N1 diagnosis: Anti‑whistleblower “ag‑gag” laws help global pandemics grow and spread

New laws in Canada will make it harder for whistleblowers to shed light on cruelty and malpractice in animal agriculture — and will hinder efforts to prevent the next global pandemic.
Although H5N1 typically infects wild birds, the virus has spilled over into domesticated animal populations, like dairy cows. Peter Cade/Stone via Getty Images

Avian flu has infected dairy cows in more than a dozen states – a microbiologist explains how the virus is spreading

The H5N1 virus has infected about 900 people since 2003, and more than half of them died. But so far there is no evidence of human-to-human transmission.
Snow geese are seen during their migratory movements at the Reservoir Beaudet, in Victoriaville, Que. in 2023. THE CANADIAN PRESS/Bernard Brault

Climate change is helping the H5N1 bird flu virus spread and evolve

H5N1 is the latest evidence that climate change is altering how viruses spread and evolve. It is essential that global public health officials take these dynamics into account.
Cows typically get over avian flu in a couple of weeks, but it’s an economic blow for farms. AP Photo/Charlie Litchfield

How bird flu virus fragments get into milk sold in stores, and what the spread of H5N1 in cows means for the dairy industry and milk drinkers

Five livestock experts who study infectious diseases in the dairy industry explain the risks.

Top contributors

More