Additional differentiation of methicillin resistant strains of Staphylococcus aureus typed by the international phage bank

: The influence of aminoglycosides (gentamicin, sisomicin and amikacin), cephalosporins (cefotaxime, ceftazidime and cefazolin) and semisynthetic penicillins (ampicillin and azlocillin) on the vital activity of macrophage-absorbed plague microbe was studied in a model of peritoneal macrophages of albino mice. It was shown that the aminoglycosides and betalactams added to the medium for the cultivation of the macrophages with the absorbed cells of the plaque microbe lowered the intensity of the plague microbe multiplication and promoted the phagocytosis completion when exposed for a prolonged time (24 hours). When the influence was body-mediated (albino mice), even a single administration of the antibiotics was sufficient to retard the vital activity of the macrophage-absorbed plague microbe during the first 6 hours of the observation period. It was also shown that the aminoglycosides were more active than the betalactams.