AIDS (Acquired Immunodeficiency Syndrome) is caused by the Human Immunodeficiency Virus (HIV). The various modes of transmission of this virus are:
(a) Making unprotected ****** contact with an infected person.
(b) Transfusion of an infectedof an infected person’s blood to a healthy person.
(c) Sharing of infected needles and syringes.
(d) Through the placenta from an infected mother to a child.