Fukumi, H Serological and virological investigations fo orthomyxovirus in birds in South-East Asian area. [electronic resource] - Developments in biological standardization - 475-60 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0301-5149 Subjects--Topical Terms: AnimalsAntibodies, ViralAsia, SoutheasternBirds--microbiologyDucksHemagglutinins, ViralInfluenza A virus--immunologyJapanNeuraminidase--immunology