[Methods of determination of virulence of smallpox vaccine].
D006801:Humans; D012899:Smallpox / Q000276:immunology*; D012900:Smallpox Vaccine; D014611:Vaccination; D014612:Vaccines; D012901:Variola virus; D014774:Virulence
D012900:Smallpox Vaccine; D014612:Vaccines
SMALLPOX/immunology; VACCINES AND VACCINATION
K voprosu o metodakh opredeleniia virulentnosti ospennoi vaktsiny.