| From the source I posted: > Other large influenza pandemics > The Spanish flu pandemic was the largest, but not the only large recent influenza pandemic. Two decades before the Spanish flu the Russian flu pandemic (1889-1894) is believed to have killed 1 million people. > Estimates for the death toll of the “Asian Flu” (1957-1958) vary between 1.5 and 4 million. Gatherer (2009) published the estimate of 1.5 million, while Michaelis et al. (2009) published an estimate of 2–4 million. > According to a WHO publication the “Hong Kong Flu” (1968-1969) killed between 1 and 4 million people. > Michaelis et al. (2009) published a lower estimate of 1–2 million. > The Russian Flu pandemic of 1977-78 was caused by the same H1N1 virus that caused the Spanish flu. According to Michaelis et al. (2009) around 700,000 died worldwide. > What becomes clear from this overview are two things: influenza pandemics are not rare[...] Heck, ebola was a decade ago with 300k deaths. Novel viruses appear all the time. |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7252012/