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Your immune system attacks germs to help keep you healthy. Learn how this system defends you from germs every day.
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Emily Raij has been a book editor for more than 10 years. She specializes in editing professional resources for K-12 educators. She has also written for various publications focusing on parenting topics and children with special needs. Emily is a native of Chicago, where she earned her bachelor's degree in journalism from Northwestern University. She currently lives in Tampa, Florida, with her husband, daughter, and son.
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