Haemorrhagic smallpox.
D000293:Adolescent; D000328:Adult; D000917:Antibody Formation; D000941:Antigens / Q000032:analysis; D002648:Child; D003168:Complement Fixation Tests; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006470:Hemorrhage / Q000209:etiology*; D006801:Humans; D005779:Immunodiffusion; D008297:Male; D008875:Middle Aged; D009500:Neutralization Tests; D011247:Pregnancy; D012899:Smallpox / Q000097:blood / Q000150:complications* / Q000276:immunology; D012901:Variola virus / Q000302:isolation & purification
D000941:Antigens