Aerococcus sanguinicola

Aerococcus sanguinicola is a member of the bacterial genus Aerococcus and is a Gram-positive, catalase-negative coccus growing in clusters. This species was defined in 2001 [1] and has since then been increasingly recognized as a pathogen causing urinary tract infections [2][3] and also invasive infections including infective endocarditis.[4] Commercially available biochemical tests fail to properly identify A. sanguinicola [5] and correct identification can be achieved through genetic or mass spectroscopic methods, such as matrix-assisted laser desorption/ionization time of flight (MALDI-TOF).[6] A. sanguinicola is, with A. urinae, the most common aerococcus isolated from urine, but from blood, A. urinae is much more commonly encountered.