Higher air temperatures and humidity may spare much of Africa from the worst of Covid 19...
https://www.accuweather.com/en/health-wellness/new-study-says-high-temperature-and-high-relative-humidity-significantly-reduce-spread-of-covid-19/703418
When I were a lad we had an ashtray shaped like a tortoise. My dad used it and to try and explain Zeno's paradox with my Action Man playing Achilles.
Presumably we were locked down due to some pandemic at the time...
Scary stuff. Might explain the number of deaths among relatively young health workers in China...
Oh and props to the doc for using the f word on the BBC World Service.