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Question 29. Prevention of infectious diseases
Infectious diseases are a group of diseases caused by the penetration of pathogenic (pathogenic) microorganisms into the body. In order for a pathogenic microbe to cause an infectious disease, it must have virulence (poisonous; Lat. Virus - poison), that is, the ability to overcome the body's resistance and exhibit toxic effects. Some pathogenic agents cause poisoning of the body by exotoxins (tetanus, diphtheria) that they secrete during their life, while others release toxins (endotoxins) when their bodies (cholera, typhoid) are destroyed.
One of the features of infectious diseases is the presence of an incubation period, that is, a period from the time of infection to the appearance of the first signs. The duration of this period depends on the method of infection and the type of pathogen and can last from several hours to several years (the latter is rare).
The place where microorganisms enter the body is called the entrance gate of infection. Each type of disease has its own entrance gate, for example, cholera vibrio penetrates the body through the mouth and is not able to penetrate the skin.
increasing the body's resistance to hygiene and physical education;
carrying out preventive vaccinations;
cure the source of infection.
Quarantine is a set of measures to stop the spread of infection, this includes the isolation of previously sick, disinfection of the place of residence, identification of contacts with patients, etc.
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Question 29. Prevention of infectious diseases
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