Paul Andersen explains how your body protects itself from invading viruses and bacteria. He starts by describing the nonspecific immune responses of skin and inflammation. He then explains how we use antibodies to disrupt the function...

A protein produced by the immune system that attacks a harmful agent, such as a virus or bacteria.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...

Scientists have found that measles is a lot more devastating to the immune system than previously thought. <br/>