One interesting thing that's happened in the USA is that infections and deaths with influenza for the 2020/2021 influenza season are
way down.
This is, I suspect, because the precautions taken to reduce the incidence of COVID (with an R0 about 3) worked even better against seasonal influenza, which has an R0 or about 1.3 (range 0.9-2.0).
https://www.scientificamerican.com/a...vid-pandemic1/
The same thing's happened in the UK and elsewhere.