Military police officer Everaldo Pinto, dressed as superhero Captain America, places protective masks over children's mouths amid the COVID-19 pandemic in Petropolis, Rio de Janeiro state, Brazil, Thursday, April 15, 2021. Pinto advises children on the need to protect themselves against the COVID-19, distributing kits equipped with cleaning products and protective face masks to prevent the spread of the new coronavirus. (AP Photo/Silvia Izquierdo)