QUOTE : In other cases, the reasons for forgetting are more prosaic, more epidemiological, more related to numbers: the particular pandemic disease was not fatal enough (2009 H1N1 influenza), or it did not afflict enough people because it was not infectious enough (MERS), or it burned out too fast (SARS-1), or it afflicted a confined subgroup of the human population (Ebola), or it was brought low by a vaccine (measles and polio), or by treatment (HIV), or by eradication (smallpox), allowing most people to simply push the disease out of their minds. While the way we have come to live in the time of the COVID-19 pandemic might feel alien and unnatural, it is actually neither of those things. Plagues are a feature of the human experience. What happened in 2020 was not new to our species. It was just new to us.