Fatal Aerococcus urinae Aortic Valve Endocarditis with Severe Regurgitation.

BACKGROUND Aerococcus species are a rare cause of endocarditis. Micro-organism identification and antibiotic choice can pose significant management challenges to clinicians who care for patients with this infection. Aerococcus is a gram-positive micro-organism which is commonly misidentified because it shares many similarities with streptococcus and enterococcus species.