Which disease is caused by the microorganism shown in the given figure?
$(2)$ What does the part labeled $(A)$ in the given figure represent?

$NACO$ stands for

$AIDS$ is caused by $HIV$ that principally infects:

Identify the correct match from the given statements.

If a patient is advised Anti Retroviral Therapy,which infection is he suffering from? Name the causative organism.

How many of the following factors are responsible for the spread of $AIDS$?
$I -$ Sexual contact with an infected person
$II -$ Wearing clothes of an infected person
$III -$ Transmission from infected mother to the foetus through the placenta
$IV -$ Shaking hands with an infected person
$V -$ Use of contaminated blood and blood products
$VI -$ Use of contaminated needles or syringes by drug addicts