| Summary |
Phosphotungstic Acid (PTA) negative stain was studied, We found that the sodium salt had better resolution power than that of the potassium salt, while the potas-sium salt had stronger contrast power than that of the sodium salt. Pig inoculated with Hog cholera virus ALD strain, on the 9th day post-inoculation virus particles were found in the cytoplasm of capillary wall of the ear skin.
Akabane viruses, Chuzan viruses, lbaraki viruses, Rickettsia-like organism of the Tilapa, and Swine Toga-like Viruses, were confirmed by the electron microscopic examination.
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| Keyword |
Negative stain, Hog cholera virus, Akabane disease virus, Chuzan disease virus,
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