“At the root of every pandemic is an encounter between a disease-causing microorganism and a human being”, emphasises Laura Spinney in her book, “Pale Rider: The Spanish Flu of 1918 and how it changed the world” , adding that pandemics are “shaped by numerous other events taking place at the same time - the weather, the price of bread, ideas about germs, white men and jinns.” A pandemic is as much a social phenomenon as it is a biological one. It cannot be separated from its historical, geographic, economic and socio-cultural context. History offers a mirror that helps discern patterns in biological behaviour, societal priorities and responses to these outbreaks.
Pandemics and epidemics became part of the human condition after the domestication of animals, agriculture and urbanisation. Humans living in close proximity to animals allowed disease causing organisms to proliferate, evolve and jump from one species to another. Among pandemics caused by such cross species jump of a virus or bacteria the two biggest killer pandemics were plague and the “Spanish” flu (a misnomer as it did not originate in Spain). It is interesting to look at how pandemics behave and how we behave in pandemics , especially when looking at the two biggest killer pandemics and the latest one COVID-19.


