At the beginning of 2020, we woke up with a challenge of a virus threatening to annihilate humankind. It took a while for many world leaders to understand that it is not the number of deaths caused by the virus but the reality that, if left uncontrolled, the coronavirus disease 2019 (COVID-19) can kill about half of the world’s population. Many kept quoting the yearly deaths caused by influenza and other seasonal diseases to downplay the risk until they realized that this is not an average incidence of a viral infection. Humans are very good at reacting, and we did by trying to figure out how to stop the pandemic.

The Spanish flu pandemic of 1918, the deadliest in history, infected an estimated 500

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