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How do germs get into your body?

ANSWER

Germs can get in your body through a cut, ride in on something you ate, filter through the air, or wait for you to rub your eyes after touching something that's infected.

Once inside, they start to breed.

SOURCES:

PubMed Health: “The Immune System,” “What are the organs of the immune system?” “How does the immune system work?”

Johns Hopkins Medicine: “Immune System.”

Cystic Fibrosis Foundation: “Respiratory: What You Should Know About Germs.”

Merck Manual: “Defenses Against Infection,” “Overview of the Immune System.”

American Academy of Family Physicians: “Childhood Vaccines: What They Are and Why Your Child Needs Them.”

University of Rochester Medical Center: “What Are White Blood Cells?”

CDC: “Understanding How Vaccines Work.”

Reviewed by Jennifer Robinson on October 27, 2015

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    THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.