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Mutations Observed In First Severe Human Bird Flu Case In US, CDC Says Mutations Observed In First Severe Human Bird Flu Case In US, CDC Says
Mutations Observed In First Severe Human Bird Flu Case In US, CDC Says The Centers for Disease Control and Prevention (CDC) has identified mutations in the the first severe bird flu case in the US that may increase its ability to infect humans.  These mutations, found in the hemagglutinin (HA) gene, play a key role in helping the virus attach to cells in the upper respiratory tract. This discovery stems from the first severe US case of H5N1, involving a Louisiana resident over 65 who had direct contact with infected backyard birds.  Earlier report: First Severe Bird Flu Case Confirmed In US Notably, these mutations weren’t present in the bird sam…

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by Joe Lombardi