Question

Which of the following best describes autoimmunity?

Options

• A condition where the body loses the ability to produce any immune cells

• A condition in which the immune system only attacks foreign pathogens and protects self-tissues

• A state where antibodies are produced exclusively against non-self antigens

• A condition in which the immune system fails to recognise self and reacts against the body's own cells and tissues

Answer 1

Autoimmunity is defined as the condition in which the immune system fails to recognise self and reacts against the body's own cells and tissues. It represents a state in which the body loses the ability to distinguish between self and non-self cells, causing the immune system to destroy self-cells and molecules instead of protecting them.