Sister Dr Miriam Duggan has succeeded where the United Nations and international aid agencies have failed in combating Africa’s HIV/ AIDS epidemic. She recently toured Australia as a guest of the Australian Family Association and spoke to Dr Kerrie Allen.I remember the conversation well. I was at university working on HIV/AIDS in the Caribbean. One of my public health colleagues and I were discussing prostitution in Third World countries with, of all people, a Catholic priest.The priest was argu…