Determinación de susceptibilidad a Oxacilina en cepas de Staphylococcus aureus aisladas del Hospital Isidro Ayora de la ciudad de Loja-Ecuador

Abstract

Abstract:Methicillin-resistant Staphylococcus aureus (MRSA), is a superbacterium considered the world's leading cause of in-hospital infections with a serious impact on morbidity and mortality and health costs. The main objective of this study was to determine the frequency of MRSA in S. aureus strains isolated from the staff of Isidro Ayora de Loja Hospital (HIAL). 162 isolates from 9 HIAL clinical areas were analyzed using the 'oxacillin screen agar' (OXA) method. It was determined that 45.1% (73/162) corresponded to MRSA strains, of these 76.7% (56/73) came from the nose and 23.3% (17/73) from the hands. The clinical areas with the highest prevalence of MRSA were Obstetric Center with 62% (5/8), Internal Medicine with 56% (9/16) and Surgery with 55% (11/20). Habits such as not wearing gloves and wearing clothing outside HIAL were identified in personnel carrying MRSA. These data highlight the importance of analyzing the prevalence of MRSA in health institute personnel and will contribute to the approach and establishment of prevention and control strategies for epidemic outbreaks and their multisectoral consequences on public health.