In the town of Serrana, Brazil, the entire town has been vaccinated.
Brazil as a whole, is doing very badly. But Serrana is doing very well. This spring, researchers gave the full two doses of the vaccine Coronavac to 27,160 adults -- about 95% of the city's adult population. Coronavac has an efficacy of 51%.
According to preliminary results released on June 1, the study showed an 80% reduction in the number of symptomatic cases. Covid-related hospitalizations have fallen by 86% and mortality by 95%