Almost the whole left end of their international data scatterplot is driven by 19 African countries with very low vax rates, but there are a host of reasons why the rates of Covid-19 infection are exceedingly low in Africa, among them are: early border closures, 55% rural, just 3% over the age of 65, open air ventilation in homes, very low median age of 19.7 years, lower expression of ACE-2 receptor which is the gateway for lung infection, and far fewer pre-existing conditions like diabetes, hypertension etc. Without those dubious data points clustered to the lower left, the trendline would have the opposite and expected slope. Here is a link that explains the reason for low Covid cases in Africa.
Then why do these African countries seem to get almost every virus besides COVID-19.
