[Long-term observations on the etiology and antibiotic resistance in urinary infections (1971-1987)].

Abstract

The activity "in vitro" of six antibiotics (co-trimoxazole, cephaloridine, nitrofurantoin, carbenicillin, nalidixic acid, gentamicin) was tested against four Gram negative: E. coli, Pseudomonas sp., Klebsiella sp. and Enterobacter sp. isolated from urine samples from 1971 to 1987, at the Istituto di Igiene of Trieste. The temporal analysis of antibiograms revealed an decrease of the incidence of resistance in the year 1979, 1980 and 1981. In the following years the percentage of resistance showed an increasing of incidence.