Florida's case example: We still don’t have all the answers for why Covid-19 cases rise and fall, but there are some explanations

Florida’s mysterious Covid-19 surge We still don’t have all the answers for why Covid-19 cases rise and fall, but there are some explanations. German Lopez Vox

Toward the end of the summer, Florida became the epicenter for America’s recent Covid-19 wave — reporting more hospitalizations and deaths than any other state in the country. But there was and still is surprisingly little certainty, among experts, over one question about Florida’s surge: Why did it happen?

The most common explanation for the outbreaks in the South that we saw over the recent summer was the low vaccination rates across the region. It’s true vaccination rates are low across the South: Seven of the 10 states with the lowest vaccination rates are in the region. And lower vaccine rates do correlate with more Covid-19 cases and deaths.

But Florida defies the regional trend. The state ranks 20th for full vaccination in the US, with 56 percent of people fully vaccinated — not great, but a little above the national rate. At the peak of its outbreak in mid-August, Florida had fully vaccinated about 51 percent of its population — again, not great, but in line with the national rate. ...

In my conversations with experts, several common factors came up when explaining why the coronavirus rises and falls:  ...