antibodies

Last modified on September 17, 2012 at 7:03 pm

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(AN-tih-BOD-eez)

Special fighter proteins made by your immune system. They help protect you from disease. The immune system makes a special protein for each kind of "intruder" that enters the body from the outside. These "intruders" are called antigens. The fighter proteins link up with the antigens like pieces of a puzzle. Once they're linked, the antigen is killed.

Read more about antibodies.

Roker_al_tcm8-329624

Audio contributed by: Al Roker

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