Soweto Youth Camp Held to Teach HIV Prevention (Getty)

A medical breakthrough on AIDS prevention and treatment may be on its way. A new vaginal gel that appears to block the AIDS virus is boosting hopes worldwide that the dreaded disease can be brought under control. The gel is thought to be so effective that some African nations, like South Africa, may distribute it before it is officially approved for use. It is a microbicide treated with the drug tenofivir. The gel will be especially helpful in countries where men often refuse to wear condoms during sex. Of course, something else for women to do, but if it stops AIDS, then so be it. Just a question, though: If people won't use condoms, why do researchers think that people will use this gel?