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Shingles

Shingles  An acute infection caused by the herpes zoster virus, the same virus as causes chickenpox. Shingles is most common after the age of 50 and the risk rises with advancing age. Shingles occurs because of exposure to chickenpox or reactivation of the herpes zoster virus. The virus remains latent (dormant) in nerve roots for many years following chickenpox. Shingles is an extraordinarily painful condition that involves inflammation of sensory nerves. It causes numbness, itching or...

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sickle cell anemia

What conditions promote the sickling (distortion) of the red blood cells in sickle cell anemia?...

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sickle cell anemia

What is sickle cell anemia? Sickle cell anemia is one of the most common inherited blood anemias. The disease primarily affects Africans and African Americans. It is estimated that in the United States, some 50,000 African Americans are afflicted with the most severe form of sickle cell anemia. Overall, current estimates are that one in 1,875 U.S. African American is affected with sickle cell anemia.Sickle cell anemia (sickle cell disease) is a disorder of the blood caused by an inherited abnormalhemoglobin (an...

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