title: Antibody appearance of parainfluenza-3 virus in cattle population in West Azerbaijan Province.
abstract: Studies were carried out on antibody appearance to parainfluenza-3 virus in cattle in Iran. The micro-system of HI test has been used for determination of the antibody level. Total percentage of sera with positive titers was 72.67% (336 out of 600). The picture of antibody levels in our results was as follows: 164 sera (27.33%) were negative; 147 (42.50%) had low titers; 168 (28%) showed an average titer and 21 sera (20.17%) were found to possess high antibody titers.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000302:isolation & purification*; D001382:Azerbaijan; D002417:Cattle; D002418:Cattle Diseases / Q000276:immunology*; D010224:Parainfluenza Virus 3, Human / Q000276:immunology*; D018184:Paramyxoviridae Infections / Q000276:immunology / Q000662:veterinary*; D018108:Respirovirus / Q000276:immunology*
chemical_list: D000914:Antibodies, Viral