Diaphragms could be as effective as condoms at preventing the spread of AIDS from men to women, a researcher says.
"This could and should be promoted among women," said Zena Stein of Columbia University. "It's not going to do everything, but it will do something."
Ms. Stein said that while condoms can prevent the heterosexual transmission of AIDS, they are not used nearly as often as they should be. Most heterosexual transmission occurs from men to women, she said, and therefore it is women, not men, who have the incentive to use condoms.