Relationship between asthma and allergic antigens in rural houses

Asthma is one of the most frequent and common diseases in China. It seriously threatens the health of the population. It is evident that mites present in rural houses may serve as an allergic antigen. In our survey, we have found several kinds of mites in farmers' houses in the northeastern part of China which have very close relation with asthmatic diseases. Investigations in rural houses further proved that the cause of asthma is certainly related with the allergic antigen of mites. The methods of prevention and control of mites are enumerated.