14,000 years ago, illuminated by animal fat lamps, two bison were expertly modelled in wet clay in the dark recesse… https://t.co/GSm5XDLQS6
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