I live in Orlando. It's been well over 80 degrees for about a week and a half and into the low 90s, and the cases in FL as of now are 433.
I read where it may more of a hemisphere thing. Once the entire hemisphere warms up it could drift away. What I read also made a point about a certain lines of latitude range (30-50 degrees North latitude approx.) seems to be getting hit with the worst of it. Draw a line on a map from Seattle thru NYC thru Spain, Italy and France, then right through the Middle East and Iran then into China. It lines up.
This info came from Goldman Sachs and not sure of their sourcing.