Bacterium
Staphylococcus saprophyticus
Coagulase-negative, novobiocin-resistant clue
STAFF-ih-lo-KOK-us sap-roh-FIT-ih-kus
High-yield clue
Coagulase-negative staph + novobiocin resistance is the classic contrast clue.
Overview
A coagulase-negative staphylococcus used in coursework to contrast novobiocin resistance with S. epidermidis.
Classification
- Gram-positive
- Cocci
- Clusters
- Coagulase-negative staphylococcus
Lab & identification clues
- Catalase positive
- Coagulase negative
- Novobiocin-resistant teaching distinction
Associations
- Urinary tract coursework association
- Staph comparison drills
- Normal flora contrast
Commonly confused with
- Staphylococcus epidermidis
- Staphylococcus aureus
Your notes
Original student-study summary. Sources checked: OpenStax Microbiology 2e, NCBI Bookshelf Medical Microbiology, and CDC topic pages where applicable; reviewed 2026-06. Educational only; no diagnosis, treatment, dosing, or specimen-handling guidance.