In which country was $AIDS$ first reported?

$AIDS$ is a disease caused by:

The presence of $HIV$ can be detected by these methods:
$(i)$ $ELISA$
$(ii)$ $WB$ $Test$ (Western Blot)
$(iii)$ $VB$ $Test$
$(iv)$ $ALISA$

$HIV$ virus affects which of the following cells in the human body?
$(i)$ $T_H$ cells
$(ii)$ $T_1$ cells
$(iii)$ Mast cells
$(iv)$ Macrophages

Provide the full forms of the following:
$1.$ $\text{HIV}$
$2.$ $\text{ELISA}$
$3.$ $\text{NACO}$

$AIDS$ is caused by which type of virus?