title: Further studies with precipitation in gel test in diagnosis of smallpox. I. Studies on detection of antibodies in sera by pig test.
mesh_terms: D000328:Adult; D000956:Antigens, Viral; D005189:False Positive Reactions; D006801:Humans; D011233:Precipitin Tests; D012899:Smallpox / Q000175:diagnosis* / Q000517:prevention & control; D012900:Smallpox Vaccine; D014611:Vaccination; D014616:Vaccinia virus / Q000276:immunology; D012901:Variola virus / Q000276:immunology
chemical_list: D000956:Antigens, Viral; D012900:Smallpox Vaccine