Bird flu is back with a vengeance. Medical experts have discovered that one variant of the avian flu virus, dubbed H3N8, has undergone several mutations and can now cause more severe infections.
Two people sharing a home caught the virus without known exposure to animals. More than 30 human cases have been reported in the United States. By Apoorva Mandavilli and Emily Anthes A Missouri ...
Researchers at the US Centers for Disease Control and Prevention (CDC) have identified a few instances of asymptomatic human infection with avian influenza A (H5N1) virus. Widespread in wild birds ...
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