The isolation of bovine parainfluenza virus type 3 (bPI-3) from a case of mild respiratory disease in a calf is described. Identification was carried out by virus isolation in cell cultures and confirmed by hemagglutination, hemagglutination inhibition, hemadsorbtion and direct imunofluorescence. This is the first report on the isolation of bPI-3 in Rio Grande do Sul, Brazil.
bovine parainfluenza 3; bPI-3