U01.03.023 Staphylococcus saprophyticus Staphylococcus saprophyticus is a Gram-positive, catalase-positive, coagulase-negative cocci that is part of the normal genital flora. It is a common cause of urinary tract infections (UTIs) in sexually active young women. Unlike S. epidermidis, it is novobiocin-resistant, which helps differentiate between coagulase-negative staphylococci in laboratory diagnosis.

Staphylococcus saprophyticus causes UTIs in young women and is novobiocin-resistant. #StaphylococcusSaprophyticus #UTI #GramPositive #CoagulaseNegative #NovobiocinResistant #Microbiology #MedicalEducation #USMLE #BacterialInfections

U01.03.022 Staphylococcus epidermidis Staphylococcus epidermidis is a Gram-positive, catalase-positive, coagulase-negative cocci that is part of the normal skin flora. It commonly causes infections associated with prosthetic devices, catheters, and heart valves due to its ability to form biofilms. It is typically novobiocin-sensitive and an important cause of nosocomial infections.

Staphylococcus epidermidis causes biofilm-related prosthetic infections and is novobiocin-sensitive. #StaphylococcusEpidermidis #CoagulaseNegative #Biofilm #ProstheticInfection #Nosocomial #GramPositive #Microbiology #MedicalEducation #USMLE