[Intergeneric antigenic relation of Hafnia and Shigella (S. flexneri and S. boydii) bacteria]

The O-antigenic relationships between Hafnia and Shigellae (S. flexneri and S. boydii) have been studied. For the first time the presence of antigenic relationship between Hafnia O19, O4, O9, O33, O5, O16, O12, O7, O29, O28, O10, O32, O24, O25, O18, O1, O13, O3, O22, O30, O37, O14, O11, O25, O23, O21, O28, O16, O24, O8, O26, O27 and S. flexneri la, lb, 2a, 2b, 4a, 4b, 6, 5a, 5b, as well as between Hafnia O10, O21, O35, O36, O9, O28, O8, O30 and S. boydii 1, 3, 6, 14, 2, 5, 2, 12 have been revealed. The character and degree of manifestation of antigenic relationships between the above-mentioned groups of bacteria have been established.