| antigenic and structural relationships between avian paramyxoviruses isolated from ducks in hong kong and mississippi, u.s.a. | representative isolates of the paramyxoviruses duck/hong kong/75 and duck/mississippi/75 were shown to be serologically closely related by haemagglutination and neuraminidase inhibition tests. the structural polypeptides of these viruses were also shown to be similar. for each of the isolates tested, polyacrylamide gel electrophoresis in the presence of sds revealed a similar polypeptide pattern consisting, under reducing conditions, of seven polypeptides with apparent mol. wt. ranging from 4600 ... | 1979 | 93619 |