Mary Ruebush, PhD., is a renowned educator who has conducted extensive research on germs and bacteria. Her findings have been published in numerous scholarly journals. She is the esteemed author of the Immunology step 1 lecture notes and has also coauthored the book on Microbiology. Currently, Dr. Ruebush exclusively teaches Immunology and Microbiology for Step 1 USMLE review at Kaplan Medical. Her expertise and dedication make her an invaluable instructor for aspiring medical professionals.

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