UN appoints new HIV/AIDS chief

United Nations Secretary General Antonio Guterres appointed a new HIV/AIDS chief on Wednesday after the previous incumbent left accused of serious mismanagement. Oxfam International executive director Winnie Byanyima of Uganda will lead UNAIDS, a spokesperson for Guterres said in a statement. She succeeds Michel Sidibe who stepped down in May after he was accused of creating “a patriarchal culture tolerating harassment and abuse of authority.”