[So-called mucoid forms of vibrio cholerae]

The authors present materials indicating that examination of nonagglutinating vibrios in the agglutination reaction with cholera sera after boiling, according to Sakazaki recommendation (1971), did not provide recognition of mucoid forms of cholera vibrio and its differentiation from cholera-like vibrios of other serological groups. It is suggested that one should take into consideration morphological peculiarities of the culture, stability of agglutination with cholera O-serum and the results of reaction of antibody adsorption in identification of cholera vibrios in the mucoid form.