title: The H7N9 influenza virus in China--changes since SARS.
authors.affiliation: Chinese Center for Disease Control and Prevention, Beijing, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000818:Animals; D001717:Birds; D002681:China; D006801:Humans; D009980:Influenza A virus / Q000145:classification; D005585:Influenza in Birds / Q000635:transmission / Q000821:virology; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control / Q000821:virology*; D058873:Pandemics / Q000517:prevention & control*; D045169:Severe Acute Respiratory Syndrome; D015047:Zoonoses / Q000635:transmission