Delhi Health Minister Satyendra Jain on March 18 said people shouldn't be careless and wear masks as much as possible amid the rising number of coronavirus cases across the country. “Yesterday, 536 Covid-19 cases reported. Positivity rate in Delhi is 0.66%. Compared to other states, situation in Delhi is under control. The testing rate is 5% more than the national average. People shouldn't be careless & wear masks as much as possible,” he said