Kigali: Scientists in the US have succeeded in genetically engineering a malaria-resistant mosquito. The researchers, from the University of Arizona, introduced a gene that affected the insect's gut, meaning the malaria parasite could not develop.

Kigali: The prevalence of HIV/Aids is falling among young Rwandans because they are having safer sex with fewer partners, the United Nations AIDS programme said ahead of a major conference next week in Vienna.