title: An influenza A H1N1 virus revival - pandemic H1N1/09 virus.
abstract: In April 2009, a novel H1N1 influenza A virus, the so-called pandemic H1N1/09 virus (former designations include swine influenza, novel influenza, swine-origin influenza A [H1N1] virus [S-OIV], Mexican flu, North American Flu) was identified in Mexico. The virus has since spread throughout the world and caused an influenza pandemic as defined by the criteria of the World Health Organization. This represents the first influenza A virus pandemic since the emergence of H3N2 (''Hong Kong'' Flu) in 1968. Vaccine production has started, and vaccines are expected to become available during the course of 2009. Although the pandemic H1N1/09 virus originates from the triple-reassortant swine influenza (H1) virus circulating in North American pigs, it is not epidemic in pigs. Although the H1N1/09 virus pandemic is currently mild, concerns remain that it may become more aggressive during spreading. The distribution of proper information to the public on the status of the H1N1/09 virus pandemic will be important to achieve a broad awareness of the potential risks and the optimum code of behavior during the pandemic. Here, the features of pandemic H1N1/09 virus are discussed within the framework of knowledge gained from previous influenza A virus pandemics.
authors.affiliation: Institute for Medical Virology, Johann-Wolfgang-Goethe University Clinic, Frankfurt am Main, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Michaelis
authors.forename: H W
authors.initials: HW
authors.lastname: Doerr
authors.forename: J
authors.initials: J
authors.lastname: Cinatl
mesh_terms: D000998:Antiviral Agents / Q000627:therapeutic use; D004196:Disease Outbreaks; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000187:drug effects / Q000235:genetics / Q000302:isolation & purification* / Q000472:pathogenicity*; D007251:Influenza, Human / Q000188:drug therapy / Q000453:epidemiology* / Q000635:transmission / Q000821:virology*; D014764:Viral Proteins; D037521:Virulence Factors
chemical_list: D000998:Antiviral Agents; D014764:Viral Proteins; D037521:Virulence Factors