CHOLERA IN THE UKRAINE AND MOLDOVA AT THE PERIOD OF THE 7TH PANDEMIC

The epidemic manifestations of cholera in the Ukraine and Moldova in 1 970-1991 are analyzed. In the Ukraine the peak of cholera morbidity in 1970 was caused by infection brought to the ports of Odessa and Kerch with its subsequent spread to other territories. This infection was c haracterized by outbreaks transmitted through water, mainly sea water, with the isolation of Vibrio eltor toxigenic virulent strains and out breaks of vibrio carriership of alimentary (dairy) origin with the iso lation of avirulent strains. In Moldova local outbreaks of water origi n were registered in 1970-1972. In both territories prolonged (up to 1 6 years and even longer) circulation of cholera vibrios, mainly nontox igenic and avirulent, were registered. The retrospective epidemiologic al analysis and the epidemiological situation in some regions of the U kraine in 1991 completely confirmed the prognostic importance of the d ivision of territories into regions according to the type of epidemiol ogical manifestations and the necessity of differentiating the measure s to be taken in the system of epidemiological surveillance.