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    • How Does Bird Flu Spread to Humans?

      How Does Bird Flu Spread to Humans?

      Verywell Health via Yahoo News· 18 hours ago

      Bird flu is an infectious viral illness that can spread among birds, and in rare cases, it can spread to humans. Here's what you need to know about how...

    • Raluca Cohen

      Raluca Cohen

      Time Magazine· 2 days ago

      Scientists never used to give a spit about saliva. Diagnostically, it was the least useful bodily fluid, especially compared with serum (blood) and...