The first report of endocarditis with visualized valve vegetations.

was recently defined as a species and has previously often been mistaken for due to the difficulties of conventional laboratory methods to distinguish the two species. The clinical presentation of infections caused by is largely unknown, and its virulence has since the definition of the species been debated. Here we present, to our knowledge, the first case of infective endocarditis due to with valve vegetations visualized on echocardiography.