Delhi has witnessed an initial success in treating critical coronavirus patients with Plasma therapy. Delhi Chief Minister Arvind Kejriwal said that till now plasma therapy has been tried on 4 patients at Lok Nayak Jai Prakash Narayan Hospital and the results have been satisfactory. Delhi health minister Satyendra Jain exclusively talks with Aaj Tak on the successful results of Plasma therapy treatment for COVID-19 patients.