Your Immune System: How It Fights Infection to Keep You Well

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Your immune system works to root out germs and other invaders that have no business in your body. Here's how it helps guard your body from all threats:

Stuff happens. You nick your skin and bacteria get in. Or you rub your eyes, not realizing that the doorknob you touched had a cold virus on it. Or you ate something that maybe wasn’t cooked or cleaned as well as it should have been.Your immune system steps in, like a bouncer who means business. It releases white blood cells and other chemicals that destroy these threats. Or it causes a reaction, like a sneeze, to boot out a virus in your nose.

It’s an elite squad of agents that zap invaders -- like bacteria, viruses, and fungi -- ASAP. They zoom through your body and defend you.Germs look for ways to get under your skin -- literally. They could get in through a cut, ride in on something you ate, filter through the air, or wait on a coin for you to touch it and then rub your eyes.Your immune system should know that there’s a problem.

 

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It just sucks when your immune system attacks your own body. ms autoimmune MultipleSclerosis

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