This volume of Fields Virology: RNA Viruses, Seventh Edition covers the latest information on RNA viruses, how they cause disease, how they can cause epidemics and pandemics, new therapeutics and vaccine approaches, as provided in new or extensively revised chapters that reflect these advances in this dynamic field. It includes two new chapters on SARS - Coronavirus 2 covering both basic science and clinical aspects of CoV2 and COVID-19. prev. ed.: 2013.