Comparative study on the pathogenicity and immunogenicity of wild bird isolates of avian paramyxovirus 2, 4, and 6 in chickens.

摘要: Based on the haemagglutination inhibition assay, nine antigenically distinct serotypes of avian paramyxoviruses (APMV) are described. Isolates from APMV 2, 3, 6 and 7 can cause respiratory symptoms and/or problems reproductive tract that may produce complications if secondary infections occur, while isolates 4, 5, 8 9 rarely clinical signs in species which they isolated. belonging to 1 subtype induce a wide range disease varying mild with devastating consequences as caused by velogenic Newcastle virus. In this report, one isolate each were isolated wild birds subsequently characterized specific pathogen free chickens. All three no but showed microscopic lesions trachea, lungs, gut, pancreas characteristic for viral infection. Interestingly, only 2 induced antibodies, in...