Delhi Chief Minister Arvind Kejriwal on Friday said, "In the last few days, we have tried plasma therapy on 4 patients at Lok Nayak Jai Prakash Narayan Hospital. Till now the results are encouraging." r. SK Sarin, Director, Institute of Liver & Biliary Science, said, "We are happy with the positive results in the 4 patients. Blood & plasma is ready for 2-3 other patients that we have at LNJP hospital, we may give them the plasma therapy today." Delhi has reported a large number of Covid-19 patients.