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Staphylococcus haemolyticus

Staphylococcus haemolyticus
Scientific classification
Kingdom: Bacteria
Phylum: Firmicutes
Class: Bacilli
Order: Bacillales
Family: Staphylococcaceae
Genus: Staphylococcus
Species: S. haemolyticus
Binomial name
Staphylococcus haemolyticus
Schleifer & Kloos, 1975

Staphylococcus haemolyticus is a member of the coagulase-negative staphylococci (CoNS). It is part of the skin flora of humans, and its largest populations are usually found at the axillae, perineum, and inguinal areas.S. haemolyticus also colonizes primates and domestic animals. It is a well-known opportunistic pathogen, and is the second-most frequently isolated CoNS (S. epidermidis is the first).Infections can be localized or systemic, and are often associated with the insertion of medical devices. The highly antibiotic-resistant phenotype and ability to form biofilms make S. haemolyticus a difficult pathogen to treat.

S. haemolyticus is nonmotile, nonsporulating, facultatively anaerobic, and Gram-positive. Cells are typically coccus-shaped and range from 0.8-1.3 μm in diameter. It lives on a wide variety of substrates, including glucose, glycerol, maltose, sucrose, and trehalose. It also tests positive for acetoin production, arginine, dihydrolase, benzidine, catalase, hemolysis, and lipase; it tests negative for coagulase, DNase, ornithine decarboxylase, phosphatase, urease, and oxidase.


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