Grant application A grant application to the department of health and human services, public health service for a study to test the hypothesis that profound promiscuity in male homosexuals and the attendant multiple exposures to sperm and microbes impairs immune regulation and cytoxic T cell surveillance to microbes, especially to cytomegalovirus, Epstein-Barr virus and pneumocystis carinii (Pneumocystis pneumonia). Principle investigator / program director is David Theodore Purtilo. Filed by Dr Simon Watney under the title 'Multi-factorial model'. October 1982