Forty sexually active HIV-negative American women between the ages of 18 and 24 are participating in a two-week trial to test the effectiveness of VivaGel, a vaginal microbicide gel for preventing transmission of HIV and genital herpes. The gel is being tested for safety and ease of use, according to its Australian maker, Starpharma Holdings, Inc.
40 U.S. Women Try VivaGel
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