Which of the following describes an autoimmune disease?

An autoimmune disease is a condition in which your immune system mistakenly attacks your body. The immune system normally guards against germs like bacteria and viruses. When it senses these foreign invaders, it sends out an army of fighter cells to attack them.

Which of the following is an example of an autoimmune disease infection and death of T helper cells by a virus resulting in a loss of adaptive immunity?

Human immunodeficiency virus (HIV) is the most well-known example of a chronic immune system condition caused by an infection. HIV infects T cells, specifically a type of T cell called CD4+ T cells. This results in two issues.