On April 18, Delhi's Covid-19 positivity rate jumped to 7.72 per cent. The national capital recorded 501 fresh cases, 16 less than the previous day, as per the health department data. On April 17, the city recorded a 4.21 per cent positivity rate. Delhi’s Covid-19 cases have jumped to 18,69,051 while the fatality count stood at 26,160 as no new death was reported. On April 17, Delhi recorded 517 Covid-19 cases with no new fatalities. On April 16, the national capital recorded 461 Covid-19 cases and two deaths. Watch the video to know more.