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Immune System for Parents
The immune system, composed of special cells, proteins, tissues, and organs that protect against germs and microorganisms, is the body's defense against disease.
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How to Handle an Eye Injury for Parents
Some eye injuries can be treated at home, while others require a visit to the doctor or emergency room. Find out what to do if your child has eye pain.
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A to Z: Wheezing for Parents
A "wheeze" is a high-pitched whistling sound made when air flows through narrowed airways in the lungs.
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Preventing Eye Injuries for Parents
Eye injuries in kids can lead to serious vision problems, even blindness. Wearing protective eyewear can prevent most eye injuries.
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The Spleen for Parents
The spleen is a fist-sized organ in the upper left part of the belly under the ribcage. It helps protect the body by clearing worn-out red blood cells and other foreign bodies (such as germs) from the bloodstream.
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Typhoid Fever for Parents
While typhoid fever isn't common in the U.S., it can be a health threat elsewhere. Learn about this illness and how to prevent it.
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Immune System for Teens
The immune system is made up of special cells, proteins, tissues, and organs that defend people against germs and microorganisms.
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Pilonidal Cyst for Parents
A pilonidal cyst is a fluid-filled sac under the skin in the lower back, near the crease of the buttocks.
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A to Z: Hearing Loss, Mixed for Parents
Learn about causes of hearing loss and conditions that can affect the ear and auditory nerve.
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A to Z: Hypogammaglobulinemia for Parents
Learn about complications of white blood cell deficiencies and conditions that affect the immune system.