Smallpox

Smallpox is a contagious disease caused by a virus that’s no longer found in nature.For centuries, smallpox killed millions of people around the wo...

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Sjogren's Syndrome

Sjogren’s syndrome is an autoimmune disease that causes your immune system to go haywire and attack healthy cells instead of invading bacteria or v...

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Sideroblastic Anemia

The most common form of inherited SA is known as X-linked sideroblastic anemia. Although doctors don’t know the exact cause of acquired SA in most ...

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Severe Hearing Loss

Severe hearing loss means you can hear some sounds, but very poorly. To understand how hearing loss happens, it helps to know how your ear works. T...

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Reconstructive Surgery

Unlike elective cosmetic procedures, most insurance carriers cover the costs of reconstructive surgery, especially if you are experiencing a functi...

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Porphyria

This shortage leads to a buildup of certain chemicals, called porphyrins, that help make heme. Symptoms are different depending on the type of porp...

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