The nature of a protective immune response to HIV is still unclear. Because in a very, very unique manner, unlike virtually any other microbe with which we're familiar, the HIV virus has evolved in a way that the immune system finds it very difficult, if not impossible, to deal with the virus.

Staph lives on skin. Thats the reason why many infections start as a boil.

Today we know the best way to prevent the spread of Ebola infection is through public health measures.

There cannot be any impediment to science that will ultimately be good to the general public.

Although it is still important to develop an HIV vaccine, we have significant tools already at our disposal that can make a major impact on the trajectory of this epidemic.

Activism has been very productive in our society.

The worst potential bio-terrorist is nature itself.