There is actually more interesting things going on here then the title suggests. They split this small city into 4 and offered each section vaccines at a diffe

There is actually more interesting things going on here then the title suggests. They split this small city into 4 and offered each section vaccines at a different time to get a better real-world test of the exact herd immunity point. https://clinicaltrials.gov/ct2/show/NCT04747821 https://clinicaltrials.gov/ct2/show/NCT04747821 https://www.sciencenews.org/article/coronavirus-pandemic-serrana-brazil-covid-mass-vaccine https://www.sciencenews.org/article/coronavirus-pandemic-ser...