Bird Flu Concerns Emerge In America Yet Again

Many doctors and scientists have been keeping an eye on the threat that 'bird flu' possesses to humans for years -- and a case of the influenza strain popping up in Texas this week is raising the alarm for many Americans. So, should this because for concern? And what really is the bird flu to begin with?

FOX News Medical Contributor and Professor at NYU Langone Health Dr. Marc Siegel, who has done extensive research on the bird flu, discusses how the disease is spreading, what caused the most recent break out in Texas, and why fear can be just as contagious as a disease -- even if there's little to no reason to be afraid.

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