title: Two coagulase-variant forms of Staphylococcus aureus isolated from blood cultures.
abstract: Two coagulase-variant forms of Staphylococcus aureus were isolated from blood cultures of a patient with infective endocarditis. The coagulase-positive isolate was hemolytic, whereas the coagulase-negative isolate was nonhemolytic. All other properties examined were identical in both strains. Since coagulase-negative S. aureus strains have been isolated from clinical specimens, laboratories should consider using a combination of other biological properties along with coagulase production for the identification of S. aureus.
mesh_terms: D000328:Adult; D003030:Coagulase / Q000032:analysis*; D004697:Endocarditis, Bacterial / Q000097:blood* / Q000382:microbiology; D006801:Humans; D008297:Male; D013203:Staphylococcal Infections / Q000097:blood* / Q000382:microbiology; D013211:Staphylococcus aureus / Q000201:enzymology* / Q000302:isolation & purification
chemical_list: D003030:Coagulase