RIO DE JANEIRO, BRAZIL - The mass vaccination against Covid-19 of the entire adult population of the same city concluded this Sunday in Brazil as part of an unprecedented project that seeks to analyze the capacity of Coronavac to reduce the infection rate of the coronavirus.
The immunization took place in Serrana, a city located in the interior of the state of São Paulo and home to 45,000 inhabitants, of which about 30,000 over 18 years of age were immunized with the Chinese vaccine.
The vaccination process of the so-called 'Project S' (Project Serrana) began last . . .