Resident doctors of AIIMS with the help of IIT-Delhi students have developed an app to track real-time COVID-19 patients in the hospital, who can become potential plasma donors 28 days after recovery along with those who have been discharged. The app named COPAL-19 has details of patients who have already been discharged from AIIMS, those currently undergoing treatment and their blood groups so that patients who require plasma therapy can get it in time. We speak to Dr Abhinav Singh Verma, Neurosurgery Resident doctor, at AIIMS, who realised what a struggle it was to get a plasma donor when a colleague fell sick.