List any three ways in which AIDS is transmitted why is this disease considered so dreadful

List various ways through which AIDS spreads ?

(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.

The disease which is transmitted through placenta is

which is not a sexually transmitted disease