Go to the part 1 Does greater prior exposure to pathogens, including other recent coronaviruses, help explain why Africa is a COVID-19 cold spot, despite endemic poverty and a woeful health infrastructure? Conversely, in the more sanitized surroundings of the more developed world, people’s immune systems may be insufficiently ‘trained’ to cope with novel disorders, … Continue reading Africa, DNA and the historical dance of genes and environment (Part. 2)