How contagious is the coronavirus? Here's what doctors suggest

Meanwhile, India coronavirus confirmed cases toll has surged to 649 with 13 deaths. Globally, more than 4,70,000 people have been tested positive for coronavirus and over 21,000 have died. Almost half of the world population is under lockdown due to coronavirus outbreak as number of infected person continues to rise. China, US, Italy and Spain are the worst-hit countries in the world having maximum number of COVID-19 cases and deaths.