Bird flu’s surprising heat tolerance has scientists worried

ScienceDaily
Nov 28, 2025, 7:37 am127 ptsTrending
Researchers discovered why bird flu can survive temperatures that stop human flu in its tracks. A key gene, PB1, gives avian viruses the ability to replicate even at fever-level heat. Mice experiments confirmed that fever cripples human-origin flu but not avian strains, especially those with avian-like PB1.…

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