Abstract
Muscovy ducks (Cairina moschata) showed abnormal feathering, leg weakness, and high mortality. A virus was isolated from these ducks after several blind passages in embryonating Muscovy duck eggs. The isolate was resistant to chloroform, to pH 3.2, and to 65 C for 30 min. Electron microscopy showed that the isolate was an icosahedral and nonenveloped virus 20-22 nm in diameter. The isolate reacted with an antiserum against a goose parvovirus in agar gel precipitation tests. After 15 passages of the isolate in embryonating eggs, the isolate was adapted to Muscovy duck embryo fibroblasts. The adapted virus developed cytopathic effects and made clear plaques on sheets of the fibroblasts. When 5-iodo-2-deoxyuridine was added to the culture medium, virus growth was inhibited. From the data shown above, the isolate was identified as a goose parvovirus.
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