Psychological factors are critical in supporting immune function. If you suppress this psychological support by telling someone he's condemned to die, your words alone will have condemned him.

Our goal is not to completely eradicate the infection - that would be very difficult - but to produce a vaccine that will prevent not infection but disease. I think this is more possible.

I am very puzzled by the fact that young people are getting infected again. They don't take precautions despite an enormous amount of information. It's like riding a race car at 200 kilometers an hour. Some people like the risk.

The center will be fully operational in two years' time, but probably in the middle of the year we will have a temporary laboratory of 4,000 square feet.