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Skin flora, also called skin microbiota, refers to microbiota (communities of microorganisms) that reside on the skin, typically human skin. Many of them are bacteria of which there are around 1,000 species upon human skin from nineteen phyla. [1] [2] Most are found in the superficial layers of the epidermis and the upper parts of hair follicles.
Anaerobic bacteria are a common cause of infections, some of which can be serious and life-threatening. Because anaerobes are the predominant components of the normal flora of the skin and mucous membranes, they are a common cause of infections of endogenous origin. [4]
Commensal S. epidermidis is an essential part of a healthy skin microbiota. It contributes through supporting a healthy skin barrier, healing cuts of the skin, protecting the skin microbiota from colonization of skin pathogens, and acting as an immune system modulator. [7] Staphylococcus epidermidis biofilm on titanium substrate
Staphylococcus capitis is a bacterium that colonizes the skin, scalp, face and neck. [2] Staphylococcus capitis typically colonises the skin of the head (especially the ears and forehead), arms, and, sometimes, legs. According to one study, head and arm populations of S. capitis persisted over the course of one year in 20% of individuals.
Cutibacterium acnes bacteria predominantly live deep within follicles and pores, although they are also found on the surface of healthy skin. [3] In these follicles, C. acnes bacteria use sebum, cellular debris and metabolic byproducts from the surrounding skin tissue as their primary sources of energy and nutrients.
Microbial contamination means that a microbe has gotten into something that it shouldn’t. Using the affected products can result in fungemia, a serious medical condition.
The blistering rash on 7-month-old Sobhia’s skin is the result of bacteria from polluted water, doctors told her mother. The infant, who was born a few months after the start of the Israel-Hamas ...
Bacterial flora is endogenous bacteria, which is defined as bacteria that naturally reside in a closed system. [6] Disease can occur when microbes included in normal bacteria flora enter a sterile area of the body such as the brain or muscle. [6] This is considered an endogenous infection.