Johns Hopkins Antibiotic (ABX) Guide

Staphylococci, coagulase negative


  • Coagulase-negative staphylococci (CoNS) are aerobic, gram positive coccus, occurring in clusters. Frequently found on skin and mucous membranes.
  • Catalase positive but coagulase negative (while S. aureus is coagulase positive).
    • Major pathogen is S. epidermidis, colonies typically small, white-beige (about 1-2 mm in diameter).
    • Over forty recognized species of CoNS, with other major entities including S. lugdunensis and S. haemolyticus.
  • Many strains with propensity to produce biofilm, allowing for adherence to medical devices.
  • Usually resistant of penicillin and methicillin (oxacillin).

Staphylococci, coagulase negative was found in Johns Hopkins ABX Guide.

If you are a registered user, please log in below.

If not, learn more about gaining full access.


Forgot your password?

Forgot your username?

Johns Hopkins Guides include up-to-date, authoritative content to help you treat patients and raise the standard of care.

Try these free topics now!

Johns Hopkins ABX Guide

Johns Hopkins Diabetes Guide

Johns Hopkins HIV Guide

Content Manager
Related Content
Staphylococcus spp
Vascular Infections
Surgical prophylaxis
Osteomyelitis Chronic
Surgical Site Infections SSI
CNS Shunt Infections
Prosthetic Joint Infections
Cardiovascular Device Infections

more ...