Staphylococcus saprophyticus

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Staphylococcus saprophyticus is a coagulase-negative species of Staphylococcus which is often implicated in urinary tract infection. Along with several other Staphylococcus species, S. saprophyticus is resistant to the antibiotic Novobiocin, a characteristic that is used in laboratory identification.

The organism is rarely found in healthy humans but is commonly isolated from animals and their carcasses.

It is implicated in 10-20% of urinary tract infections (UTI). In females between the ages of ca. 17-27 it is the second most common cause of UTIs. It may also reside in the urinary tract and bladder of sexually active females. S. saprophyticus is phosphatase-negative, urease and lipase positive.

Quinolones are commonly used in treatment of S. saprophyticus urinary tract infections.

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