Bird flu (H5N1) gain of function research in China - 560,000 times more lethal in mammals - June 2026

China Engineers Mutant H5N1 Influenza Viruses 560,000 Times More Lethal in Mammals: Journal 'Emerging Microbes & Infections'

Jon Fleetwood Substack

Mouse study 10.1080/22221751.2026.2685917

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