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The Briefing Room
Avian flu is evolving but what risk does it pose to us?
May 16, 2024
David Aaronovitch and experts delve into the spread of avian flu H5N1 to cows in the US, discussing risks, mutation pathways to humans, pandemic potential, surveillance in cattle, and the search for Scorpion in a smuggling gang.
28:34
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Quick takeaways
- Avian flu viruses like H5N1 mutate to adapt to new hosts, increasing virulence.
- H5N1 originated in Chinese poultry markets, spreading to mammals via genetic mutations.
Deep dives
Origins and Evolution of Avian Flu Virus H5N1
Avian flu viruses like H5N1, which have origins in bird populations, adapt to different hosts including mammals through mutations. These mutations enable the virus to be more virulent in the new hosts. The segmented nature of flu viruses allows for mixing of genetic material, potentially leading to new variants better suited for mammalian hosts.
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Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode