New Delhi, June 30 -- The Delhi government has asked all hospitals and Covid-19 testing laboratories in the national Capital to start rapid antigen detection tests to scale up its ongoing process of identifying symptomatic patients and isolating them immediately. To further increase testing across the city, all district magistrates have also been asked to set up at least seven more antigen testing centres in each of the 11 districts, and double their daily testing target to 2,000, government officials said Monday....