In a speech given at the international AIDS vaccine conference held in South Africa, Hogan urged researchers and scientists to step up their efforts in finding a new AIDS vaccine.

• 在南非举行的国际艾滋病疫苗大会发表的讲话中，霍根鼓励研究人员和科学家们投入更多心血来研制新的艾滋病疫苗。