AIDS was first identified as a new disease in 1981. Ever since, doctors, scientists and researchers （show） commitment to understanding and fighting it, and have been slowly winning the battle this deadly disease. They soon figured out human immunodeficiency virus （HIV） is the primary cause. was initially adopted for treatment was a single drug, azidothymidine. It was not effective for long. The endless efforts of researchers finally led to a great leap in the mid-1990s, when the combination therapy was developed.
