[Studies of strains of influenza viruses isolated during the epidemic in 1957 in Changchun].
D058872:Epidemics; D006801:Humans; D009975:Orthomyxoviridae
INFLUENZA VIRUSES
Izuchenie shtammov virusov grippa, vydelennykh v period epidemicheskoi vspyshki v 1957 g. v g. Chanchune.