Electron optical and buoyant density studies of hog cholera virus.
D000818:Animals; D000831:Animals, Newborn; D002499:Centrifugation, Density Gradient; D006691:Classical Swine Fever / Q000382:microbiology*; D046508:Culture Techniques; D008854:Microscopy, Electron; D009500:Neutralization Tests; D012328:RNA Viruses / Q000302:isolation & purification; D013552:Swine