When it comes to the potential of H5N1 avian flu, otherwise known as bird flu, picking up mutations that might lead to human-to-human spread, that “train has already left the station,” warns one infectious disease expert.
When it comes to the potential of H5N1 avian flu, otherwise known as bird flu, picking up mutations that might lead to human-to-human spread, that “train has already left the station,” warns one infectious disease expert.
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