| Abstract: | A virus designated DH-1 was isolated from the lung of a lamb that died during the course of an epizootic of acute respiratory tract disease. The virus contained ribonucleic acid and was sensitive to heat (56 C), lipid solvent, and acid (pH 3.0). Inoculated cell cultures absorbed and culture fluids agglutinated guinea pig erythrocytes. Morphogenic and morphologic characteristics of the isolate were compatible with those of the genus Paramyxovirus of the family Paramyxoviridae. Serologic results indicated that the virus was indistinguishable from prototype parainfluenza virus type 3. |
