How a vaccination experiment transformed one small city
June 07 2021, 08:00
Hope has returned to the small city of Serrana, Brazil, after researchers vaccinated almost its entire adult population in a city-wide medical experiment this spring.
Hope has returned to the small city of Serrana, Brazil, after researchers vaccinated almost its entire adult population in a city-wide medical experiment this spring.
Source:
CNN.com - RSS Channel - World
