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Influenza Virus Orthomyxovirus

Credit: CDC PHIL photo 10071
article: WHO Declares Swine H1N1 Pandemic for 2009
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Influenza Virus Transmission EM, Negative Stain Eggs Used for Influenza Culture In vivo  Influenza Virus Orthomyxovirus  Influenza Vaccine Vaccine Readied for Injection
 Influenza Virus Orthomyxovirus  , CDC PHIL  photo 10071