Morning Briefing

"The most popular contraceptive for women in eastern and southern Africa, a hormone shot given every three months, appears to double the risk the women will become infected with HIV," according to a study involving 3,800 sero-discordant couples in Botswana, Kenya, Rwanda, South Africa, Tanzania, Uganda and Zambia, the New York Times reports. The study, led by researchers at the University of Washington and published Monday in the journal Lancet Infectious Diseases, also found that when the contraceptive was "used by HIV-positive women, their male partners are twice as likely to become infected than if the women had used no contraception," the newspaper writes. In addition, the study "found that oral contraceptives appeared to increase risk of HIV infection and transmission, but the number of pill users in the study was too small to be considered statistically significant, the authors said," according to the New York Times.