Why is AIDS considered to be a "Syndrome" and not a disease?

(i) Expand the abbreviation AIDS. Name its causative organism. (ii) Why AIDS is considered a syndrome and not merely a disease ? Comment. (iii) List atleast three ways in which AIDS can be transmitted from an infected person to another.

Assetion:AIDS is considered to be one of the deadiest diseases. Reason :It virus destroys suppresser T lymphocytes

Assetion:AIDS is considered to be one of the deadiest diseases. Reason :It virus destroys suppresser T lymphocytes

The agent of AIDS disease is

Why is pneumonia considered a dangerous disease?