Tons of methane gas could be trapped under Antarctica_美文

Tons of methane gas could be trapped under Antarctica

(MUSIC)

SHIRLEY GRIFFITH: The search for an effective vaccine against HIV has been called one of the greatest scientific challenges of our time. For the past eleven years, the Vaccine Research Center at America’s National Institutes of Health has been taking part in the search. There have been many successes and failures. But the scientists working at the center are more hopeful than ever they will develop a vaccine.

Guy Jenkins-Bass has been infected with HIV for more than ten years. Like millions of HIV-positive people, anti-retroviral drugs have given him the freedom to live a normal life. He is thankful for the care he receives at the Whitman Walker Clinic in Washington, DC. He hopes that one day there will be a vaccine to prevent HIV infection, and maybe even a cure.

GUY JENKINS-BASS: “I would love to see a cure for it. That would be even better. But it’s not like they’re not trying -- I mean I know people are trying to find a cure.”

BOB DOUGHTY: Gary Nabel has spent more than ten years working to develop a vaccine at the Vaccine Research Center. He says when he started, it seemed like a never-ending project. But he is pleased with the developments of the past few years.

DR. GARY NABEL: “I would have to say from my own personal experience, the high point was probably our ability to identify one of the most broadly-neutralizing antibodies that we’ve yet discovered against HIV.”