Serological Studies of Vibrio parahaemolyticus

II. Flagellar Antigens

Abstract

Serological studies were carried out on the flagellar antigens of Vibrio parahaemolyticus by using the method of Gardner et al.
Results obtained are as follows.
1) The H antigens of 97 strains belonging to 37 serotypes of V. parahaemolyticus were identical with one another.
2) The H antigens of 18 strains belonging to V. alginolyticus were also identical with one another.
3) Reciprocal relationships were observed between the H antigens of V. parahaemolyticus and those of V. alginolyticus. Each species, however, was possessed of such H antigen factors as specific to the respective species.