Abstract
Immunoregulatory cytokines produced by the TH1 subset and by CD8+ T lymphocytes appear to brake naturally and sometimes arrest the progress of HIV infection in the early phase. It appears reasonable to assume that a mild and equilibrated stimulation of the immune system may prevent or delay the fatal transition towards the prevalent production of TH2-type cytokines. The problem is how to stimulate the immune system in a physiological fashion. In the last 7 years we have clarified the main mechanisms of action of an unorthodox immunotherapeutic method first used 40 years ago. Optimized autohaemotherapy after a brief exposure ofblood to ozone may today afford the trick of reprogramming the immune system to keep HIV at bay. The autohaemotherapeutic procedure is simple, safe, inexpensive and most likely is more effective than conventional approaches.