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Importantly, S. aureus is generally coagulase-positive, meaning that a positive coagulase test would indicate the presence of S. aureus or any of the other 11 coagulase-positive Staphylococci. [1] A negative coagulase test would instead show the presence of coagulase-negative organisms such as S. epidermidis or S. saprophyticus.
Some staphylococci are capable of producing free coagulase. Thus, that is used to differentiate Staphylococcus species. In this context, a distinction is made in species between coagulase-positive and coagulase-negative staphylococci. Staphylococcus capitis is a species in the genus that is positive for staph coagulase. [6]
Staphylococcus hominis is a coagulase-negative member of the bacterial genus Staphylococcus, consisting of Gram-positive, spherical cells in clusters.It occurs very commonly as a generally harmless commensal on human and animal skin and is known for producing thioalcohol compounds that contribute to body odour.
S. epidermidis, a coagulase-negative staphylococcus species, is a commensal of the skin, but can cause severe infections in immune-suppressed patients and those with central venous catheters. S. saprophyticus , another coagulase -negative species that is part of the normal vaginal flora , is predominantly implicated in uncomplicated lower ...
S. epidermidis, a coagulase-negative species, is a commensal of the skin, but can cause severe infections in immunosuppressed patients and those with central venous catheters. S. saprophyticus , another coagulase-negative species that is part of the normal vaginal flora , is predominantly implicated in genitourinary tract infections in sexually ...
[citation needed] S. lugdunensis may produce a bound coagulase (that is, the enzyme is bound to the cells), a property it shares with S. aureus, but unlike S. aureus, it does not produce a free coagulase. In the laboratory, it can give a positive slide-coagulase test but a negative tube-coagulase test.
Staphylococcus haemolyticus is a member of the coagulase-negative staphylococci (CoNS). [2] It is part of the skin flora of humans, [3] and its largest populations are usually found at the axillae, perineum, and inguinal areas. [4] S. haemolyticus also colonizes primates and domestic animals. [4]
It is a coagulase-negative, DNase-positive member of the genus Staphylococcus. Usually it is associated with goats. Since 1991, a few laboratories reported that they had isolated the organism from human clinical specimens. [3] It is now an emerging microorganism in joint and bone infections in humans. [4]