Partial 16S ribosomal ribonucleic acid sequences of five Aerococcus-like organisms originally isolated from patients with urinary tract infections were determined using reverse transcriptase in order to clarify their taxonomic position. Analysis of the sequence data revealed that the clinical isolates represent a hitherto unknown line of descent within the genus Aerococcus. A new species, Aerococcus urinae, is proposed for these isolates. The type strain is NCFB 2893.
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