Isolation of rare coagulase-negative isolates in immunocompromised patients: Staphylococcus gallinarum, Staphylococcus pettenkoferi and Staphylococcus pasteuri.

Herein, we describe the isolation of Staphylococcus pasteuri, Staphylococcus pettenkoferi and Staphylococcus gallinarum and summarize the clinical characteristics of five patients. Cases were identified over a 2-year surveillance period that identified the respective strains using microbiologic and molecular methods. These data suggest that rare coagulase-negative staphylococcal infections may be under-diagnosed due to difficulties associated with routine clinical laboratory diagnostic methods.