[Microorganisms isolated from healthy newborns in the first and third twenty-four hours]. / Drobnoustroje izolowane od zdrowych noworodków w pierwszej i trzeciej dobie zycia.

From forty healthy newborns of The Neonatology Ward of H.Jordan Hospital in Lodz, skin and nasal septum-swabs have been sampled immediately after the delivery. Whereas, in the third twenty-four hours of their lives, apart from skin and nasal septum-swabs, it has been sampled also faeces-swabs. The aim of the examination was to establish time of bacterial colonization and kinds of microorganisms responsible for that colonization after children's delivery. Two hundred clinic samples have been entirely taken to microbiological examination. It has been received 119 positive inoculations; 186 Gram-positive bacteria strains as well as 38 strains belonging to Enterobacteriaceae family have been cultured from healthy newborns. Eleven strains of methicillin resistant Staphylococcus aureus have been isolated--each from the skin and the nasal septum, during the first twenty-four hours, eight strains from skin in the third twenty-four hours as well as one from the nasal septum in the third twenty four hours. The results gathered on the basis of the study, allow to conclude that healthy newborns as early as in their first twenty four hours are influenced both by the physiological bacterial flora and pathogenic microorganism that can be an ethiological factor of hospital infection.