從尿液分離之革蘭氏陽性球菌,catalase (+),coagulase (-),對0.04 unit bacitracin及5 μg novobiocin紙錠均呈抗性,此菌最可能為:
Aerococcus urinae
Micrococcus luteus
Staphylococcus saprophyticus
Staphylococcus lugdunensis