Last year more than two million people were treated with HIV drugs in the developing world. That is a sharp increase from fewer than 300,000 only three years ago, says the head of the U.S. National Institute of Infectious Diseases.

Dr. Anthony Fauci, an expert on HIV-AIDS, divulged those statistics during his keynote address at the fourth annual international AIDS conference down under in Sydney, Australia. Fauci said those numbers indicate that doctors are losing the fight against AIDS in third world countries.

"For every one person that you put in therapy, six new people get infected. So we're losing that game, the numbers game," Fauci said, according to BBC news.

He explained that the problem is growing worse because so few people, less than 15 percent in some places, have access to condoms, needle exchanges and AIDS education, according to the Associated Press.