Substantial investment in condom promotion, HIV testing and vaccine research has had limited success in Africa, they argue in Science.

Instead male circumcision and reducing multiple sexual partners should become the "cornerstone" of prevention.

Two-thirds of HIV infections globally occur in Africa.

Yet the researchers from the Harvard University School of Public Health said the evidence behind many of the prevention strategies used in African countries with "generalised" heterosexual HIV epidemics was weak.  Read More...