Coagulase Negative Staphylococci (CoNS) are a group of bacteria that are part of the normal skin flora but can act as opportunistic pathogens. Unlike their more notorious cousin, Staphylococcus aureus, CoNS do not produce coagulase, an enzyme that clots blood plasma. This group includes several species, with Staphylococcus epidermidis being the most commonly identified.
