To use all functions of this page, please activate cookies in your browser.
my.bionity.com
With an accout for my.bionity.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
Staphylococcus
Staphylococcus (in Greek staphyle means bunch of grapes and coccos means granule) is a genus of Gram-positive bacteria. Under the microscope they appear round (cocci), and form in grape-like clusters.[1] Additional recommended knowledgeThe Staphylococcus genus includes thirty-one species.[2] Most are harmless and reside normally on the skin and mucous membranes of humans and other organisms. Found worldwide, they are a small component of soil microbial flora.[3] Role in diseaseStaphylococci can cause a wide variety of diseases in humans and other animals through either toxin production or invasion. Staphylococcal toxins are a common cause of food poisoning, as it can grow in improperly-stored food. Although the cooking process kills them, the enterotoxins are heat-resistant and can survive boiling for several minutes. Staphylococci can grow in foods with relatively low-water activity (such as cheese and salami).
Staphylococci can also be found on the tips of the fingers, in particular, on the index finger as well as the thumb. This infection is known as a felon. As are many other Staphylococcus infections, felon is very painful and can be treated with antibiotics. Most S. aureus are penicillin-resistant, but vancomycin and nafcillin are known to be effective against most strains. Biochemical identificationStaphylococcus aureus shows beta-hemolysis on Sheep Blood Agar, however S. epidermidis is non-hemolytic on SBA. Both are positive for catalase production. References
Categories: Staphylococcaceae | Bacillales |
||||||||||||||||||
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Staphylococcus". A list of authors is available in Wikipedia. |