Isolation of orthomyxoviruses from migrating and domestic ducks in northern Japan in 1976--1977
| Autor: | Nobuhisa Yamane, Jiro Arikawa, Takato Odagiri, Nakao Ishida, Noriyoshi Sukeno, Morihiro Morita |
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| Rok vydání: | 1978 |
| Předmět: |
Veterinary medicine
Virus isolation Significant difference virus diseases Hemagglutinins Viral Influenza a Animals Wild Biology Haemolysis Isolation (microbiology) Virology General Biochemistry Genetics and Molecular Biology Ducks Japan Influenza A virus Animals Domestic Animals Seasons Antigens Viral |
| Zdroj: | Japanese journal of medical sciencebiology. 31(5-6) |
| ISSN: | 0021-5112 |
| Popis: | Ortho- and parmyxoviruses were isolated at high frequencies from cloacal and tracheal samples of 334 domestic and 161 migrating ducks in Miyagi and Akita Prefectures, Japan, in the winter of 1976--77. Forty-four hemagglutinating agents were isolated from these ducks. The frequency of virus isolation was much higher from the cloacal samples (6.3%) than the tracheal samples (2.6%). However, no significant difference was found in the isolation ratio between the domestic (7.8%) and migrating (6.8%) ducks. Nine strains of the hemagglutinating agents were identified as influenza A viruses and confirmed to be in pure form by complement-fixation (CF) tests and from their polypeptide profiles. The antigenic characterization of the influenza A viruses revealed the presence of several subtypes; Hav5Nav-2-3, Hav6Neq2, Hav6N2, Hav7Neq2 and Hav7N2. |
| Databáze: | OpenAIRE |
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