Why does AIDS only occur in humans?

This supports the hunter theory because every time SIV passed from a chimpanzee to a human, it would have developed in a slightly different way within the human body, and produced a slightly different strain. This explains why there is more than one strain of HIV-1.6. read more

HIV 1&2 infects humans and apes both, but disease occurs only in humans hence is the name. Receptors in humans are different. And also the intracellular environment favors HIV replication in humans. read more

Human immunodeficiency virus (HIV) is a virus that causes the condition acquired immunodeficiency syndrome (AIDS). The virus attacks a specific type of immune system cell in the body, known as CD4 helper lymphocyte cells. HIV destroys these cells, making it harder for your body to fight off other infections. read more

AIDS stands for acquired immunodeficiency syndrome, a disease that makes it hard for the body to fight off infectious diseases. The human immunodeficiency virus (HIV) causes AIDS by infecting and damaging part of the body's defenses against infection, namely the white blood cells known as CD4 helper lymphocytes (pronounced: LIM-fuh-sites). read more