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Occurrence of contaminating viruses in various swine fever virus strains. II. Studies on Gillespie's cytopathic type-A strain and on other strains

Bodon, L.

Acta Veterinaria Academiae Scientiarum Hungaricae 25(4): 291-296

1975

ISSN/ISBN: 0001-7205
PMID: 1233873
Document Number: 94306
The swine fever (SF) virus strain PAV-1, characterized in the U.S.A. as cytopathic, as well as five other SF virus strains from Bulgaria and Romania, failed to produce CPE. The changes appearing in PK-15 permanent pig kidney epithelial cell cultures infected with the strains were not characteristic of any known group of viruses, and similar changes also appeared in control cultures not infected with virus. This and the type of changes suggest that these were due to ageing or spontaneous degeneration of the cells rather than to SF virus.

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