'28% cases in India till Apr 30 were asymptomatic'

At least 28 per cent of 40,184 people who had tested positive for Covid-19 between January 22 and April 30 in India were asymptomatic, a study found, raising concerns about the novel coronavirus being spread by those who show mild or no symptoms. A large proportion of both those tested and those positive were asymptomatic contacts, according to the study by ICMR.