The Brazilian city of São Paulo, the largest city in South America with 12 million inhabitants, decided to make the use of masks mandatory again in public transport to prevent the spread of COVID-19, it was officially announced on Thursday.
The measure is also recommended by the government of the state of São Paulo, whose capital is the city of the same name, for the rest of the municipalities as a result of the increase in COVID-19 infections and hospitalizations.
The state of São Paulo, the most populated in the country with 46 million inhabitants . . .