| cholera in bahrain: epidemiological characteristics of an outbreak. | in the period 10 august 1978-23 january 1979, 913 culture-confirmed cases of cholera caused by vibrio cholerae, biotype el tor, serotype ogawa, occurred in bahrain. after discovery of the initial cases, others occurred sporadically, and the incidence reached a peak of 25-35 cases per day during the seventh week of the outbreak (16-22 september). the overall attack rate (27 per 10 000) was low and the outbreak subsided without mass immunization campaigns or rigorous border control of persons and ... | 1981 | 6973417 |