Abstract
During the past 2 years, Escherichia coli was isolated in 32.5% from 18,031 samples of urine. Enteropathogenic serotypes of the·groups 18, 20, 25, 26, 28, 44, 55, 78, 86, 111, 112, 114, 119, 124–128 were isolated in 11.4% of the isolations of E.coli or in 3.7% of the samples of urine. The most frequently isolated·groups were 78 (16 %), 18 (13 %) and 119 (12%). With 0.6%·111 group was the least frequent. There was no difference in the frequency of isolated enteropathogenic serotypes in women (11.4 %) and men (11.5 %) although the sex ratio of isolations of E. coli was 3.7:1 in favor of women. A correlation of clinical diagnoses and isolated·groups was inconclusive. Antibiotic sensitivity testing of enteropathogenic serotypes revealed results nearly as identical as other·groups of E. coli. Ampicillin was the only drug with significantly better activity, which, however, did not improve its therapeutic value. Women of parturition age and both sexes in the age of grandparents constitute peaks of isolations of enteropathogenic serotypes of E. coli. In case of poor personal hygiene and cleanliness, such persons may infect infants and toddlers.