[A comparative study of the immunogenicity of a bacterial mass and of the cell membranes of Vibrio cholerae grown in vivo and in vitro].

The comparative study of the immunogenic and protective properties of V. cholerae, grown in vivo and in vitro, and cell walls and lysates obtained from these organisms. In the mouse protection test the efficacy of preparations obtained from vibrios grown in vivo did not exceed that of the preparations obtained from V.

[The characteristics of Vibrio cholerae isolated in Dagestan in 1994].

A high degree of resistance to cholera diagnostic phages and carriership of prophages characteristic of V. cholerae eltor strains vct+ were shown to be the specific features V. cholerae isolated in Daghestan during the period of June-October 1994.

[Vibrio eltor strain, serotype Ogawa, the producer of cholera enterotoxin].

V. eltor strain 1310, serotype Ogawa, an original strain capable of producing cholera enterotoxin (exotoxin) in synthetic culture media, has been obtained. The exotoxin produced by this strain can be obtained in large amounts and used as cholerigenic toxoid for immunization against cholera.