COVID-19 Harvard Doctor Predicts COVID-19 Vaccine By Early 2021 | Hallie Jackson | MSNBC July 20, 2020
COVID-19 July 9, 2020 WATCH: Can herd immunity work?As many grow anxious about long-term closures due to the pandemic, some are pushing the idea of developing “herd immunity” in order to make most people resistant to the disease by spreading it. Dr. Ashish Jha, director of the Harvard…