Some countries, such as Brazil, Thailand, and Uganda, have had notable success with treatment programs. Brazil, by using locally manufactured drugs, has halved the AIDS - related death rate.
एड्‌सविरोधी लस सापडण्याची शास्त्रज्ञांना मनःपूर्वक आशा वाटते आणि वेगवेगळ्या देशांत बऱ्‍याच लशींचे परीक्षण केले जात आहे.