CORONOVIRUS TRACKING Links to Parts 1-28 Doctor, Did You Wash Your Hands?® Curated Contemporaneous Case Study Methodology Jonathan M. Metsch, Dr.P.H. PART 1. January 21, 2020. CORONAVIRUS. “The Centers for Disease Control and Prevention on Tuesday confirmed the first U.S. case of a deadly new coronavirus that has killed six people in China.” PART 2. … Continue reading CORONOVIRUS TRACKING Links to Parts 1-28