Perfil de sensibilidad de S. agalactiae obtenido a partir de muestras de introito vaginal y región perineal de mujeres gestantes de Medellín (Colombia)

We have carried out a descriptive study to determine the susceptibility profile of S. agalactiae isolates from the vaginal cavity and the perineal region from pregnant women in Medellin, between 2008 and 2010. The S. agalactiae isolates were obtained by first culturing samples in Todd Hewitt broth with antibiotics followed by sub-culturing in agar with Blood 5%. The Kirby-Bauer method described by the Clinical and Laboratory Standards Institute (CLSI) was used to evaluate the antimicrobial susceptibility profile of the isolates. A susceptibility of 100% to ampicillin and vancomycin was observed, that decreased to 25% for tetracycline and 72% for erythromycin and clindamycin.