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Disease

Polio

Learn more about this contagious viral illness that affects the nervous system. Severe disease can lead to paralysis, trouble breathing and sometimes death.
Disease

Reye's syndrome

Learn about the causes and treatment of this rare but serious condition causing swelling in the liver and brain.
Disease

Tonsillitis

Learn about this common cause of sore throat in children and its treatment.
Disease

Nickel allergy

Nickel allergy is an immune system reaction to nickel. This metal is often in jewelry, clothing fasteners, electronics and many other common items.
Disease

Chronic lymphocytic leukemia

Find out more about the symptoms, diagnosis and treatment of this type of leukemia.
Disease

Cataracts

Are things starting to look fuzzy or blurry? Find out about symptoms, diagnosis and treatment for this common eye condition.
Disease

Neuroendocrine tumors

Learn about the types of tumors that make up this group of rare cancers. Find out about symptoms, causes, diagnosis and treatments.
Disease

Ampullary cancer

Learn more about the causes, diagnosis and treatments for cancer of the ampulla of Vater.
Disease

Appendix cancer

Learn about this rare cancer that affects the appendix, which is a small pouch attached to the large intestine.
Disease

Bird flu (avian influenza)

Flu viruses in other animals, such as birds, may be a risk to people. Learn more about the symptoms, causes, prevention and treatment for bird flu in people.
Disease

Small lymphocytic lymphoma

Find out more about the symptoms, diagnosis and treatment of this type of non-Hodgkin lymphoma.
Disease

Hypertrophic cardiomyopathy

In this condition, the heart muscle thickens, which makes it harder for the heart to pump blood. Learn about the causes and treatment.
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