[The complement system and circulating immune complexes in burn patients].

The results of the study of humoral immunity in 80 burn patients are presented. A typical feature of all burn patients was a decrease in the total activity of the alternative path of the activation of complement and its factors B and D, beginning from the first day after the trauma. The character of changes in the functional activity of components C1-C5 of the classical path depended on the area of damages with their activation if burn area was less than 20% of the skin surface and deactivation if the burn area exceeded 20%.