A case of Gemella morbillorum native valve endocarditis and results of in vitro susceptibility testing

We present a case of a 48 years old male with Gemella morbillorum native mitral valve endocarditis. Due to poor growth of the organism, antimicrobial susceptibility test (AST) could not be performed using the CLSI approved method. AST was determined using Etest© strips and the patient was successfully treated with mitral valve replacement and intravenous ceftriaxone.