Share of Germans in their 20s without formal vocational qualifications (ungelernt) falls from high of 16.5 % in the… https://t.co/t9KrVAfpO5
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