Mayo Clinic virologist explains concern about avian flu and why flu vaccine is necessary

For the primary time within the U.S., H5N1 avian influenza, generally referred to as the fowl flu, has been detected in a pig. The virus is widespread amongst wild birds globally. It continues to trigger outbreaks in American poultry and dairy cows, and it has contaminated people. The Centers for Disease Control and Prevention experiences 46 confirmed human instances of fowl flu within the U.S., all linked to animal publicity with "no evidence of human-to-human transmission."

"The strain that was detected in pigs most closely matched or resembled the strain that’s found in wild birds and not the strain that has been detected in dairy cattle," says Dr. Matthew Binnicker, director of the Clinical Virology Laboratory at Mayo Clinic.
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