The work showed that on 34-th, 44-th, 54-th and 64-th days of experimental allergic alveolitis (AA) the humoral chain of immune system is stimulated, that is: the gradual increase of B-lymphocytes and immunoglobulins of class A, M and G is observed.
The application of immune-modulating Corvitin preparation, beginning with 54-th day of modeling process, during 10 days, showed the lowering of these indexes, comparing to a group of animals, who were not subjected to action of this preparation, which testifies to its corregating action upon humoral immunity.