The titration of vaccinial neutralizing antibody on chorio-allantoic membranes.
D000482:Allantois; D000818:Animals; D057134:Antibodies, Neutralizing; D015605:Cowpox; D006801:Humans; D014615:Vaccinia / Q000276:immunology*; D014616:Vaccinia virus
D057134:Antibodies, Neutralizing
VACCINIA/immunology