[Reactogenicity and immunological effectiveness of an oral cholera chemical vaccine in a limited controlled experiment with human revaccination].

Oral cholera chemical vaccine in the doses tested (2 and 3 tablets) proved to be areactogenic, harmless and immunologically effective in a controlled limited trial in 150 volunteers. By the results of titration of specific antitoxins and vibriocidal antibodies in the blood serum, as well as of coproantibodies a dose of 2 tablets was chosen as the optimal one.