Gram positive cocci, may be mistaken for a viridans streptococcus. A. christensenii, A. sanguinicola, A. urinae, A. urinaehominis, A. viridans.
Usually disease in the elderly (PubMed). If you isolate an alpha streptococcus in the urine, it is likley aerococcus although the lab may not bother to identify it unless they have a MALDI-TOV, which, by the way is not a salute.
Relevant links to my Medscape blog
Last update: 05/05/18