Archbishop Zygmunt Zimowski, secretary of the Pontifical Council for Pastoral Assistance to Health Care Workers, left, and Vatican spokesman Federico Lombardi attend a press conference at the Vatican on Thursday, Feb. 3, 2011. The Vatican health office announced it will host an international conference in May on preventing AIDS and caring for those afflicted with it amid continued confusion over its position concerning condoms as a way to prevent HIV transmission. (AP Photo/Pier Paolo Cito)