| Description | Joseph Sonnabend theorised the multi-factorial model, as an explanation as to how AIDS developed. He developed his theory from observations of homosexual clients who visited his STD clinic in Greenwich Village, New York as well as the environmental factors which they had been exposing themselves to as a result of their life style. The model proposed that there is no single agent which can be claimed to cause AIDS. Instead, the environmental factors of repeated exposure to multiple allogeneic semen, repeated infections with CMV and infections of other sexually transmitted pathogens result in the eventual development of the AIDS. |