NEET2018ZoologyHuman Health and DiseasesActual
Which of the following is not an autoimmune disease?
Options
- AAlzheimer's disease
- BRheumatoid arthritis
- CPsoriasis
- DVitiligo
Correct answer
A. Alzheimer's disease
Step-by-step solution
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. Normally, the immune system can tell the difference between foreign cells and your own cells. In an autoimmune disease, the immune system mistakes part of your body — like your joints or skin — as foreign. Thus, it loses its ability to different