But stubborn tradition-bound medicine kept its back turned on science, and it took almost another 200 years before an understanding of harmful microorganisms and the concept of anti-sepsis shaped medical practice.
What You Should Know A normal vagina contains many bacteria that help keep it healthy by raising the acid level and preventing the growth of harmful microorganisms that prefer a more alkaline environment.
Cytotoxic T cells destroy body cells that pose a threat to the individual namely, cancer cells and cells containing harmful microorganisms.
Potable water must, of course, be free of harmful microorganisms and chemicals, but public supplies should also be aesthetically desirable so that consumers will not be tempted to use water from another, more attractive but unprotected source.
(1) The integumentary system, composed of the skin and associated structures, protects the body from invasion by harmful microorganisms and chemicals; it also prevents water loss from the body.
And many scientists fear that the use of chlorine can result in the growth of resistant and sometimes harmful microorganisms, including Legionella, the cause of Legionnaires' disease and Pontiac fever, and the nontuberculous mycobacteria, which can infect the lungs, skin and other organs.
These tissues are associated with mucosal surfaces of almost any organ, but especially those of the digestive, genitourinary, and respiratory tracts, which are constantly exposed to a wide variety of potentially harmful microorganisms and therefore require their own system of antigen capture and presentation to lymphocytes.
This process also removes harmful microorganisms.
By analyzing the global dynamic properties of the model, the feasibility of employing microbial metabolites as flocculant to remove harmful microorganisms is considered.
