Allergic diseases. Analysis of the causes of their increase
: Current trend in the incidence and run of allergic diseases is given consideration. It is stated that allergy has become more prevalent and severe as a result of: wide presentation of allergens in the environment, beneficial conditions for potentiation of allergenic reactions, changes in the ways of allergens and other xenobiotics entry, etc. The role of natural allergens and chemical allergens-haptens in raising the incidence of allergic diseases is analysed specially. A mechanism of autoimmune shifts in the body related to xenobiotics metabolism is suggested. To control allergy, it is necessary to reduce the exposure of the population to xenobiotic anthropogenic load both by means of diminution of the concentration in the environment and by limiting the list of chemicals able to enter internal medium of human body, drugs among them.