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Question

Which of the following is not an autoimmune disease?

A
Alzheimer's disease
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B
Rheumatoid arthritis
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C
Psoriasis
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D
Vitiligo
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Solution

The correct option is A Alzheimer's disease
An autoimmune disease is a condition in which the immune system mistakenly attacks the body.

Alzheimer's disease - a progressive neurologic disorder that causes the brain cells to die. It is not considered an autoimmune disorder.

Rheumatoid arthritis - immune system attacks the lining of the joints.

Psoriasis - immune system attacks the skin cells as foreign invaders. This causes the skin cells to rapidly multiply, leading to the characteristic psoriasis skin lesions.

Vitiligo - the immune system attacks the pigment cells (melanocytes) in the skin.

Rheumatoid arthritis, psoriasis and vitiligo are autoimmune disorders.

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