Dr Pratik Mammode has spent much of the past year on the front lines of India’s fight against the coronavirus. Until recently, the 26-year-old junior resident doctor had been on Covid-19 duties, donning and doffing personal protective equipment day in, day out on 12-hour shifts at a 1,500-bed facility in India’s capital city of Delhi. He remembers being sweaty and horribly dehydrated for most of the four months he was on-call.Tough though the experience was, he was prepared for the challenge,…