Bronchial asthma - a chronic disease of the respiratory tract, manifested by recurring attacks of breathlessness.This is due to the violation of patency of the bronchi due to spasm, mucosal edema and mucus hypersecretion.
Asthma can occur at any age, but more common in children, women and residents of industrial cities.
Causes of asthma
Asthma is infectious and allergic disease, which usually occurs after infectious respiratory diseases (chronic bronchitis, pneumonia, whooping cough, measles, etc.).
As a result of suffering inflammation, exposure to bacterial, viral and other disease-causing factors in the patient's body tissue accumulates exchange products and disrupted bacterial cells (endoallergeny) formed in the body during its fight infection.Thus there is a restructuring of the immune reaction to the formation of increased sensitivity to many other factors (sensitization).
main types ekzoallergenov bronchial
Very often a change of allergic background arises under the influence of environmental factors of non-communicable (ekzoallergenov).Their conditional release in several groups.
Infectious and parasitic allergens:
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