Rocinha, Brazil’s largest favela thatwas home to about 70,000 people as of the latest census, is a geographic bowlwith brick homes covering its slopes and overlooking the Atlantic Ocean. Itsnarrow alleyways reduce airflow around homes packed tightly together and thepoor neighborhood, which lacks proper sewage, has a high incidence oftuberculosis. Locals are understandably keen to avoid the import of other airbornepathogens. With that in mind, Wallace Pereira daSilva, president of Rocinha’s residents’ association, says he delivered anofficial request on March 13 to the state tourism secretariat asking forforeigners to be banned from entering Rocinha. (AP) The Rocinha favela stands out from a hillside in Rio de Janeiro, Brazil, Monday, March 16, 2020. Rocinha, Brazil’s largest favela, is home to about 70,000 people as of the latest census. AP RIO DE JANEIRO – Since the outbreak ofthe new coronavirus, nations have begun imposing travel restrictions andclosing their borders to contain the pandemic’s spread. The latest attempt toimpose controls involves a smaller territory: the hillside neighborhood ofRocinha in Rio de Janeiro.