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[Enteroviruses in the water of surface reservoirs of the GDR and USSR].

Virological examinations of water from rivers, channels, lakes, and water reservoirs were carried out in two countries, the GDR and the USSR, in 1973-1974. The occurrence of enteroviruses in all the water bodies was demonstrated. The infection rate of water with viral and bacterial flora and water pollution with organic suspension was found to be dependent upon sewage drainage. The canals (GDR) and rivers (USSR) into which sewage of large densely populated towns were discharged were found to be most highly infected (67% and 36% of virus-containing samples, respectively). The least infected were lakes and water reservoirs receiving no or small quantities of sewage. The difference between the values indicating virus infection and pollution with organic substances in water bodies receiving and not receiving sewage was statistically significant.