This document discusses using Twitter data to track the spread of infectious diseases. It describes how researchers have developed apps like Germ Tracker that analyze geotagged tweets to identify locations where many people report being sick and map infection hotspots in real-time. This can provide more granular data than traditional reporting methods by capturing information on who infected individuals interacted with. The document advocates for building similar disease tracking systems in India to monitor common infections given its large population and disease burden. It also notes how social media is increasingly being used in medical education and research by new generations of digitally native doctors.