Original sentence: Doctors still disagree about when is the best time to begin HIV treatment, also called anti-retroviral therapy.For example, the U.Many people believe that newer treatments have played a part in delaying the onset of AIDS, on reducing the symptoms, and extending patients' life spans, although experts describe the data as  inconclusive.government's Department of Health and Human Services recommends that HIV treatment if a person has any serious symptoms, or if their T-cell count falls below 200
Edited sentence: Newer treatments, however, have played a part in delaying the onset of AIDS, on reducing the symptoms, and extending patients' life spans.Over the past decade the success of these anti-retroviral treatments in prolonging, and improving, the quality of life for people with AIDS has improved dramatically