The gradual reduction in the number of new Covid-19 cases is a "clear indicator" that the coronavirus spread is being contained in the national capital, Delhi health minister Satyendar Jain said on Friday. "The Covid-19 positivity rate was 15 per cent on November 7. It is less than 11 per cent now. The maximum number of cases (8,593) was reported on November 10," Jain said.