You need to know more about the data compilation process, and possible interruptions to normal reporting flows from the sources, before starting to draw any conclusions. I’ve seen unusual lags in UK data reporting during this crisis period.
Much good
“Your mother was a hamster and your father smelled of elderberries” was actually a bit of a clue to health, then?
Something about Jews
Italian data is gross over reporting, anon. See Italian fren’s Post in this bread, who makes this point.
Back to the catacombs!
Yes. See this, for example
https://ia801700.us.archive.org/15/items/jstor-1643270/1643270.pdf