[Typing of vibrions by specific O-sera].

Vibrios which were not agglutinated with cholera O-serum in various areas of the USSR from persons suffering from intestinal diseases, carriers, from the water and hydrobionts (550 in all) were typed serologically. Forty three specific O-sera were used ofr serological typing. A determination was made of the serological type in 93% of the strains of vibrios isolated from humans. The given sera were also capable of typing 87% of vibrio strains belonging to the I group Heiberg, isolated from water and hydrobionts, 56% of the strains of the II group and individual strains of the III group, whereas cultures belonging to the IV-VIII groups were not agglutinated by these sera. Circulation of 33 serological types of vibrios not agglutinable by cholera O-serum was revealed in the Soviet Union.