The immune system defends the body against infections and certain other diseases. It is made up of different organs, cells, and proteins known as antibodies. It identifies, attacks, and destroys germs and other foreign substances. Sometimes the immune system makes a mistake and attacks the body's own tissues or organs. This is called autoimmunity. One example of an autoimmune disease is type 1 diabetes, in which the immune system destroys the cells in the pancreas that produce insulin.
Note: All information is for educational purposes only. For specific medical advice, diagnoses and treatment, consult your doctor.
© 1995–2015 The Nemours Foundation/KidsHealth. All rights reserved.
Find out by selecting your child’s symptom or health condition in the list below:
In This Issue
Download Spring 2016 (PDF)
Cyberbullying is bullying that happens using electronic technology. It can include mean or embarrassing photos, videos or comments posted on social media or sent by text. Sometimes teens don’t want to admit to experiencing cyberbullying because they think that bullying only happens to younger kids. Ask your child to tell you about their...
From healing paws to poetry programs, see the innovative and inspiring ways Seattle Children's goes beyond traditional medicine to heal kids. The KING 5 HealthLink special “Healing the Spirit” is hosted by Jean Enersen.
Meet Seattle Children’s Hospital patients who experienced hope for healthier lives because of
. Hear from other kids about why research matters to them and should matter to you.