<span style="color: #222222;">The Delhi government has completed the door-to door health survey in the city's COVID-19 containment zones, covering around 3.68 lakh people. Over 1.66 lakh antigen tests have been conducted in 445 COVID-19 containment zones.<br />''<br />''On the 29th of last month, the Union Home Ministry had said that the door-to-door survey would be done in containment zones on priority basis by 6th July.</span><br />