haxxiy on 07 July 2021
Too bad we don't have the precise data from the 1889 pandemic. It would be great to know what caused each wave in what was likely the last coronavirus introduction to humans before SARS-CoV-2.
We know it had a huge first wave with subsequent smaller recurrences in the following years - most of them not actually during winter. Were these due to "variants of concern"? More transmissible lineages infecting those who escaped the first time, plus perhaps some immune escape?
It would make sense for a virus that just crossed the species barrier to be somewhat unstable at first, after all.
