Avaliação do padrão de sensibilidade do staphylococcus aureus aos antibióticos

Abstract

Staphylococci are spherical, Gram-positive bacteria, usually arranged in irregular bunches, similar to bunches of grapes. They grow rapidly in various types of culture media, are metabolically active, fermenting carbohydrates and producing pigments ranging from white to deep yellow. Staphylococcus aureus is one of the agents commonly implicated in hospital- and community-acquired infections, and it quickly acquires resistance to many of the antibiotics available to treat infections caused by it. This study aims to assess the pattern of sensitivity of this microorganism to antibiotics and also assess its frequency at the Hospital Central do Maputo, given the lack of information on this matter. The samples were collected in the Surgery services of the Hospital Central do Maputo, specifically in the Small Surgery and Pediatrics of the aforementioned Hospital. These samples basically consisted of pus from abscesses, phlegmons and pyomyositis, aspirated with the aid of syringes that were later sent to the laboratory where the samples were submitted to Gram's examination and biochemical tests. Most cases of S. aureus infections have been reported in children aged between 0 and 5 years. The most used antibiotics, due to their unlicensed and properly controlled sale, had a very low activity on S. aureus strains, while those with difficult access were very active against these microorganisms The Chi square test showed that the antibiogram results are significant for all selected antibiotics, with p<0.05, except those for tetracycline which are not significant (X2=1.3 and p=0.52205)(TRADUÇÃO NOSSA)