Why We Should Care About Viruses Jumping From Animals To People
b'The phenomenon of zoonotic spillover \\u2014 of viruses jumping from animals to people \\u2014 is incredibly common. The question is: which one will start the next pandemic? NPR science desk correspondent Michaeleen Doucleff brings us her reporting on Influenza D, an emerging virus spreading among cows and other livestock in the United States.
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