什么叫正常微生物菌群(国外英文资料).docVIP

什么叫正常微生物菌群(国外英文资料)Widely exist many microorganisms in nature, the human body surface and the cavity connected with the outside world, such as oral cavity, respiratory tract, intestinal tract, genitourinary tract there are different kinds and quantities of microorganisms. The so-called normal microbiome is the microorganism that is in the normal state of the human body, which is a certain type and quantity of a persons body and body. There are two groups: 1, settled microbiome: composed of fairly fixed microbiota, which are regularly settled in specific areas or at certain ages. If the colony changes, it can recover immediately. : 2, in flora of non-pathogenic or potential of pathogenic microorganism, residence in the skin or mucous membrane on a few hours to a few weeks, they came from the surrounding environment and does not cause disease, also cant settle for a long time. As long as the colony remains normal, it doesnt usually matter; But if the resident bacteria are disturbed, the potentially pathogenic microorganisms that live in the area can proliferate and cause disease.The distribution of normal microbial flora in the human bodyUnder normal conditions, the body and blood are free of microorganisms. The microbial distribution of the various parts of the human body is as follows:The normal flora of the skin:Because the skin is exposed, it is easily contaminated by microbiome. Flora due to the effect of factors such as skin secretions, clothing, and the type of bacteria in different anatomical parts is different, so there is always a constant skin flora. Common white staphylococcus, bacillus bacillus, diphtheria, e. coli, and sometimes non-pathogenic bacillus, fungi, etc. Dirty skin and armpit, there is a lot of vaginal area. The skins surface (the upper part of the cuticle) is not suitable for microorganism growth because it is drying by cycles. Most skin microorganisms are directly or indirectly related to the sweat glands. Hair follicles provide an ideal habi