RIO DE JANEIRO, BRAZIL - JANUARY 17: A student adjusts her protective mask as waiting at the Rio de Janeiro State University (UERJ) for the National High School Exam (ENEM) on January 17, 2021 in Rio de Janeiro, Brazil. Despite 15 Brazilian states showing an increase in the number of deaths from Coronavirus (Covid-19), the government maintained the exam and 5.7 million candidates are confirmed. (Photo by Andre Coelho/Getty Images)
