[Multiresistant bacterial strains in infections of children treated at the National Research Institute of Mother and Child in 1999].

The aim of the study was the evaluation of multiresistant strains in infections of children treated at the National Research Institute of Mother and Child (NRIMC). During 1999, 23145 inoculations and 3873 antibiotic susceptibility tests were done. 2711 multiresistant strains were detected of which 59.2% were Gram-negative rods and 40.8% - Gram-positive cocci. The Gram-negative rods were tested for production of beta-lactamases (ESBL), resistance to aminoglicosides, imipenem and piperacillin/tazobactam. Gram-positive cocci were tested for methicilin and aminoglicosides resistance. Cross-resistance between macrolides, lincosamides and streptogramines was also investigated. Significant participation of multiresistant bacterial strains, mainly Gram-negative, in infections among patients treated in intensive care units of the Institute should be stressed.