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Staphylococcus epidermidis is a Gram-positive bacterium, and one of over 40 species belonging to the genus Staphylococcus. [1] It is part of the normal human microbiota, typically the skin microbiota, and less commonly the mucosal microbiota and also found in marine sponges. [2] [3] It is a facultative anaerobic bacteria.
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 ...
Scanning electron microscope image of Staphylococcus epidermidis one of roughly a thousand bacteria species present on human skin.Though usually not pathogenic, it can cause skin infections and even life-threatening illnesses in those that are immunocompromised.
Staphylococcus can cause a wide variety of diseases in humans and animals through either toxin production or penetration. Staphylococcal toxins are a common cause of food poisoning, for they can be produced by bacteria growing in improperly stored food items.
Staphylococcus aureus is the most common cause of endocarditis in people who use intravenous drugs. [23] Viridans streptococci and Enterococci are the second and third most common organisms responsible for infective endocarditis. [11] Viridans streptococci are a common cause of infective endocarditis in South America.
Pathogenic bacteria are bacteria that can cause disease. [1] This article focuses on the bacteria that are pathogenic to humans. Most species of bacteria are harmless and many are beneficial but others can cause infectious diseases. The number of these pathogenic species in humans is estimated to be fewer than a hundred. [2]
Staphylococcus aureus: Skin Staphylococcus epidermidis: Skin Sometimes, mostly not Staphylococcus haemolyticus: Skin Streptococcus viridans: Skin Trichophyton spp Skin Staphylococcus aureus: Hair follicles Corynebacterium spp: External ear Staphylococcus aureus: External ear Staphylococcus epidermidis: External ear Chlamydia trachomatis: Mucous ...
Two of the bacteria species most likely to infect patients are the Gram-positive strains of methicillin-resistant Staphylococcus aureus, and Gram-negative Acinetobacter baumannii. While antibiotic drugs to treat diseases caused by methicillin-resistant Staphylococcus aureus are available, few effective drugs are available for Acinetobacter.