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
Frequently asked questions
What is Staphylococcus saprophyticus?
A coagulase-negative staphylococcus used in coursework to contrast novobiocin resistance with S. epidermidis.
What is the Gram stain of Staphylococcus saprophyticus?
Staphylococcus saprophyticus is Gram positive.
What are the lab clues for Staphylococcus saprophyticus?
Lab clues for Staphylococcus saprophyticus include Catalase positive, Coagulase negative, and Novobiocin-resistant teaching distinction.
What is Staphylococcus saprophyticus commonly confused with?
Staphylococcus saprophyticus is commonly confused with Staphylococcus epidermidis and Staphylococcus aureus.
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.