[Prevention of virus diseases].
D004660:Encephalitis; D004672:Encephalitis, Japanese; D006801:Humans; D007252:Influenza Vaccines; D008457:Measles; D023321:Poliovirus Vaccines; D014777:Virus Diseases
D007252:Influenza Vaccines; D023321:Poliovirus Vaccines
ENCEPHALITIS, JAPANESE B; INFLUENZA VACCINE; MEASLES; POLIOVIRUS VACCINE