title: Influenza. Antigenic analysis of recent influenza virus isolates and influenza activity in the southern hemisphere.
mesh_terms: D000349:Africa / Q000453:epidemiology; D000569:Americas / Q000453:epidemiology; D000956:Antigens, Viral / Q000032:analysis*; D001208:Asia / Q000453:epidemiology; D004196:Disease Outbreaks / Q000517:prevention & control*; D005060:Europe / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D009975:Orthomyxoviridae / Q000302:isolation & purification*; D009976:Orthomyxoviridae Infections / Q000453:epidemiology* / Q000821:virology*; D010139:Pacific Islands / Q000453:epidemiology; D012621:Seasons; D014944:World Health Organization
chemical_list: D000956:Antigens, Viral