Staphylococcus sp. em unidades básicas de saúde

Abstract

Infections are one of the most serious problems in developing countries. Hospitalacquired infections can become serious, involving comorbidities and even death. In addition to hospitals, PHC (Primary Healthcare Units) are also places prone to the transmission of bacteria, representing a great risk to public health. The present research aimed to perform microbiological quantification in Primary Healthcare Units and to verify the effectiveness of disinfection with 70% alcohol. The present study was developed in the state of Piauí. The study consisted of an evaluation of the presence of Staphylococcus sp. in Primary Healthcare Units (PHC). Two UBSs were selected for sample collection, where sampling was performed in three different environments of each PHC: service desk, bathroom sink, and stretcher in a room. In PHC 1 at the service desk, the number of colonies reduced from 80.5 CFU/plate to 11.5 CFU/plate, which represents a reduction of 85.7%. The bathroom sink showed an even more significant decrease, from 142 CFU/plate to 3.5 CFU/plate, resulting in a reduction of 97.6%. Similarly, the bed/stretcher had a decrease from 144 CFU/plate to 3 CFU/plate, representing a reduction of 97.92%. In PHC 2, on the service counter, even after disinfection, there was a significant growth of colonies, demonstrating that the use of alcohol was not effective in reducing the bacterial concentration. For the bathroom sink and on the bed/stretcher, the reduction in the amount of CFU was more pronounced: from >5000 CFU/plate to 216 and 32 CFU/plate respectively, representing a reduction of 95.6% and 99.4%. The results obtained in this study revealed the significant presence of bacteria of the Staphylococcus genus in the PHC analyzed, highlighting the importance of adequate disinfection practices to control microbial contamination in these environments.