In this July 24, 2020 episode of 'The Search for a Cure', Cheddar anchors Hena Doba and JD Durkin bring you the latest on the coronavirus, including an up-to-date analysis on the AstraZenena and Pfizer vaccine trials, a visualization on how masks protect from airborne droplets, and Michelle Castillo breaks down whether herd immunity is a possibility in the U.S. without a vaccine.