Variations (variants) of hog cholera virus. II. Perpetuation and attempts at enhancement of variant characteristics of hog cholera virus by means of serial passage with antiserum and without antiserum.
D000818:Animals; D006692:Classical Swine Fever Virus; D007106:Immune Sera; D012692:Serial Passage; D014780:Viruses
D007106:Immune Sera
VIRUSES