The number of HIV-infected people taking anti-retroviral medicine has doubled in just five years, the UN said Monday, while highlighting high infection rates among young African women. A new report by UNAIDS said it was on course to hit a target of 30 million people on ARV treatment by 2020. "By June 2016, around 18.2 million people had access to the life-saving medicines, including 910,000 children, double the number five years earlier," UNAIDS said in a statement. But the report showed the huge risks that some young women face. Last year more than 7,500 teenagers and young women became infected with HIV every week worldwide, with the bulk of them in southern Africa. "Young women...