Top Doctor On Why A Lockdown Is Essential To Combat Coronavirus. Eric Feigl-Ding, March 31, 2020,Video, "The Harvard epidemiologist who first earned of a coronavirus pandemic on the 20th of January, today spoke exclusively to NDTV. Dr Eric Feigl-Ding spoke of why a lockdown is essential, what more needs to be done and the controversy over whether the virus is airborne and whether the tuberculosis vaccine can help fight COVID-19." Link https://www.youtube.com/watch?v=hewqh9SIFGg