We compiled this slide in 1992. It shows dates, locations and number of cases for various epidemics reported from different parts of India till that time. The first well recorded epidemic was in 1955-56 here in Delhi with nearly 30000 cases. Large outbreaks occurred in 1978 in Kashmir. My interest in this disease began in 1991 during investigations into a large epidemic of hepatitis E in Kanpur that my mentor, later Prof SR Naik, and I undertook. I will use this epidemic as an example to describe the epidemiology of hepatitis E.