Don\'t know if you can answer this question. But say you have an unknown sample

Question

Don't know if you can answer this question. But say you have an unknown sample of bacteria that comes up in the microscope looking like staph purple clusters in the gram staining procedure, and then it's Catalse postive, DNase postive, mannitol negative, partial hemolysis (Alpha), and coagulase negative. Since it is catalase postive it should be a staph species, and with a negative mannitol and coagulase test it shouldn't be Staph aureus, but another Staph species such as S. epiderminmdis or S. saprophyticus. Just trying to narrow it down to understand the concept better. My assumption is that it can be either one of the other two non-aureus species, but just different strains. Just looking for a second option other than my own

Explanation / Answer

Hi I solved this Q and confirmed that the answer for the above Q is Staphylococcus epidermidis

It is Catalase Positive, DNase positive, Mannitol negetive,showing haemolysis and coagulase negetive

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