Question

AIDS is caused by _________.

Answer 1

Acquired immune deficiency syndrome (AIDS)

1. It is a sexually transmitted disease as it can pass from one person to another if blood from an infected person comes in contact with that of a healthy person through a cut or a scratch or using a blood transfusion.
2. The word 'immunodeficiency' means that the immune system of the affected person becomes deficient or weak. It is a disorder of the immune system.
3. The pathogen which causes AIDS is the human immunodeficiency virus (HIV)

Final Answer: AIDS is caused by the human immunodeficiency virus (HIV).