title: Detection of hog cholera virus in normal pigs salvaged from infected herds and hyperimmune pigs from biological companies.
mesh_terms: D000818:Animals; D006691:Classical Swine Fever / Q000276:immunology*; D005455:Fluorescent Antibody Technique; D007106:Immune Sera; D012328:RNA Viruses / Q000276:immunology / Q000302:isolation & purification; D013154:Spleen / Q000276:immunology; D013552:Swine / Q000276:immunology*
chemical_list: D007106:Immune Sera