I’m not sure where I heard or read this, but it struck me as profoundly true- ‘History repeats itself unless we learn from it.’ I recently finished reading the book “The Ghost Map” by Steven Johnson, which describes the conditions prevalent in 19 th century London, one of the mostly densely populated cities at that time, the multiple cholera epidemics that regularly ravaged the city, and the efforts taken by Dr. John Snow in tracing the source and the mode of spread of cholera, who was first opposed but then helped by Henry Whitehead, a young curate. The similarities between the cholera epidemics in 19 th century London and the ongoing CoViD-19 pandemic are really remarkable! To say that London was one of the filthiest cities in the world when the cholera outbreaks were rampant would not be an understatement. The sheer size of the population of the metropolis, along with lack of sanitary waste disposal facilities contributed to the filth. It may strike us a gross an...