Global concern over H5N1 bird flu transmission to humans

theguardian.com

A silent bird flu pandemic, H5N1, has spread to mammals globally, with a Texas dairy farm worker contracting it from cattle. 91 million US farmed birds are infected. Research is underway to assess the risk to humans and animals. Vaccine production challenges exist, with mRNA technology showing promise. Governments face tough decisions on vaccine distribution and antiviral use. H5N1's pathogenicity in humans has decreased.


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