Studies on influenza virus.  V.  Studies on the dual infection of influenza and Japanese B encephalitic viruses in fertile eggs.
D004660:Encephalitis; D004664:Encephalitis Virus, Japanese; D018349:Encephalitis Viruses, Japanese; D004672:Encephalitis, Japanese; D006801:Humans; D007251:Influenza, Human; D009975:Orthomyxoviridae; D014780:Viruses
ENCEPHALITIS, JAPANESE B/virus; INFLUENZA VIRUSES; VIRUSES