Characterisation of influenza a viruses isolated from turkeys in england during March‐May 1979
Open Access
- 1 July 1981
- journal article
- research article
- Published by Taylor & Francis in Avian Pathology
- Vol. 10 (3) , 281-293
- https://doi.org/10.1080/03079458108418477
Abstract
During the early spring of 1979 turkeys on at least twelve sites in England became infected with influenza A viruses. On five of these sites no virus was isolated but birds were shown to have antibodies to Havl (four sites) and Hav2 antigenic subtypes of influenza A viruses. The eight viruses isolated were typed: A/turkey/England/192–328/79 (Havl Nav2/3), A/turkey/England/192–329/79 (Hav1 N2), A/turkey/England/199/79 (Hav1 Neq1), A/turkey/ England/214/79 (Hav1 Neq1), A/turkey/England/250/79 (Hsw1 N1), A/turkey/England/262/79 (Hav1 Nav2/3), A/turkey/England/272/79 (Havl Neq1), A/turkey/England/384/79 (Hav2 Nav4). Pathogenicity index tests in 6‐week‐old chickens agreed with the clinical signs seen in turkeys in the field. Three of the isolates: 199, 214 and 272 were of extremely high virulence, 384 showed intermediate virulence, while the other isolates were of low virulence.This publication has 16 references indexed in Scilit:
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