What is sida?

AIDS: Sida, as a medical abbreviation, most likely refers to aids (acquired immune deficiency syndrome), as translated in another language (for instance, in spanish or french). For example, in spanish, acquired immune deficiency syndrome (aids) is translated as síndrome de inmunodeficencia adquirida (sida).

AIDS/HIV: Sida is aids in spanish (síndrome de inmunodeficiencia adquirida) = A.I.D.S. (acquired immune deficiency syndrome). Sida is also aids in french (syndrome d'immunodéficience acquise).

Maybe: Sida is an abbreviation used in many countries other than the us for the disease aids, caused by the virus hiv. It is primarily sexually transmitted and affects the immune system, allowing for many other infections to occur.