There is so much yet to learn!

Jon Entine and Patrick Whittle write in Quillette,

Europe has less than two-thirds of the population of Africa, but by mid-March 2021, it had 39 million cases and almost 900,000 deaths—900 percent more. The US, with less than a third of the population of Africa, has approximately 30 million cases and 535,00 deaths as of this writing, thousands of percent more on a per capita basis than Africa. In other words, the US, Europe, and parts of South America are experiencing far more than 1,000 deaths per million while most of sub-Saharan Africa has between 0.5 and 25 deaths per million, according to stats updated regularly by Wikipedia.

The most significant environmental factor, scientists say, is age. The average age of Europeans is 43; it’s 38 in the US; across the African continent, it is 18. The average age in Niger, Mali, Uganda, and Angola is under 16. Roughly a quarter of the population in both Europe and North America is over 60-years old, while in Africa, the 60+ age cohort makes up only six percent of the population.

Read more here.