Answer: HIV
Step-by-step explanation:
The causative agent of aids is HIV or also known as the human immunodeficiency virus. It is a type of virus that is attacking the immune system of people's body and if people do not treat it, this virus can lead to AIDS.
People that get the human immunodeficiency virus or also called HIV, cannot cure it, they will have it for life, but they can treat it.
It can damage the immune system in the body so the body loses the ability to fight diseases and infections.