http://www.voanews.com/specialenglish/index.cfm

AIDS
acquired immunodeficiency syndromeの略　
エイズウイルスに感染して起こる疾患
Researchers, policy makers and activists are busy preparing for the International AIDS Conference.

administration
政権
On Tuesday, the Obama administration announced its National HIV/AIDS Strategy.

infected
感染
The government says sixty-five percent of Americans who discover they are infected get treatment within three months.

antibody
抗体
The director of its Vaccine Research Center, Gary Nabel, says each antibody blocks the virus from attaching to white blood cells.

otherwise
さもなければ
It reacts with that region, it inactivates the virus and the virus never has a chance to enter the cells that it would otherwise infect.

development
一方で
In another development, the United Nations reported Tuesday that the number of young people becoming infected with HIV in Africa is falling.

agency
媒介
The U.N. AIDS agency gives credit to better use of preventive measures. It says young people in Africa are waiting longer to have sex.