[Experience in the field of microbial allergic asthma].

The present paper reports on the effect of prolonged microbial hyposensitization applied in 206 cases of microbial allergic asthma in comparison to 95 asthmatic patients of the same category in which this treatment was not applied; improvement was obtained in 78% of the former lot as against 17% in the latter. The quanlity of the improvement obtained and the dependence of the results upon the various diagnostic criteria used are discussed. Microbial hyposensitization has proved efficient in asthmatic patients although its mechanism of action is not yet known, nor the difference that exists from this point of view with the current microbial vaccination. The data obtained suggest that microbial hyposensitization acts by the mechanism of microbial vaccination in all the variants of infectious asthma.