[On persistence of vaccinia virus after smallpox vaccination. With a contribution to the problem of vaccinal immunity].
EHRENGUT
W
W
D006801:Humans; D012899:Smallpox / Q000276:immunology*; D014611:Vaccination; D014612:Vaccines; D014615:Vaccinia / Q000821:virology*; D014616:Vaccinia virus; D012901:Variola virus
D014612:Vaccines
SMALLPOX/immunology; VACCINIA/virology