Following their participation in the Cosmopolitan protest, ACT UP's Women's Caucus targeted the Center for Disease Control for its narrow definition of what constituted HIV/AIDS. While causes of HIV transmission, like unprotected vaginal or anal sex, were similar among both men and women, the symptoms of the virus varied greatly. As historian Jennifer Brier noted, "for men, full-blown AIDS often caused Kaposi's sarcoma, while women experienced bacterial pneumonia, pelvic inflammatory disease, and cervical cancer." Since the CDC's definition did not account for such symptoms as a result of AIDS, American women in the 1980s were often diagnosed with AIDS Related Complex (or ARC) or HIV. "In this process," Brier explained, "these women effectively were denied the Social Security benefits that men with AIDS had fought hard to secure, and won, in the late 1980s."