Determination of protective humoral antibody levels against vaccinia virus reinfection.
D000328:Adult; D000367:Age Factors; D000914:Antibodies, Viral / Q000032:analysis; D002648:Child; D005260:Female; D006386:Hemagglutination Tests; D006801:Humans; D007117:Immunization, Secondary; D007223:Infant; D008297:Male; D012882:Skin Tests; D012899:Smallpox / Q000517:prevention & control*; D014616:Vaccinia virus
D000914:Antibodies, Viral