[Bacterial agents most frequently isolated from hospitalized newborns]

475 samples taken from newborn infants hospitalized at "William Soler" Pediatric Teaching Hospital between January-June 1987 are studied, with the view to determine both localized and generalized sepsis. The total of positive samples was 41.3%. Enterobacteria were the organisms most frequently isolated. The coagulase-negative staphylococcus was the most frequently found in systemic sepsis (25.9%). It was demonstrated that the antibiotics with most effectiveness against enterobacteria were amikacin (97.5%) and Gentamicin (98.2%).