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.

When we can get the incidence of HIV down enough to turn the trajectory of the pandemic, it will assume a momentum of its own in diminishing HIV.

It isn't as if overnight we'd be able to get a vaccine for everyone who is going to need a vaccine.

We can sharply deflect the curve of HIV incidence.

I believe I have a personal responsibility to make a positive impact on society.

There is an urgent need for a protective Ebola vaccine, and it is important to establish that a vaccine is safe and spurs the immune system to react in a way necessary to protect against infection.