“You’ve got an Anglo population that has same sort of profile as W Europe: low replacement fertility and low immigr… https://t.co/6GveguKqIn
How vaccines crushed polio in the US in the mid 1950s and measles in Nigeria after 2005. economist.com/graphic-detail… https://t.co/f3AsZRcEVV
February 26, 2021
How vaccines crushed polio in the US in the mid 1950s and measles in Nigeria after 2005. economist.com/graphic-detail… https://t.co/f3AsZRcEVV