Low frequency of SARS-CoV2 infection in daycare centers during the reopening of school activities in the Southeast's poor area of Brazil - Soares, Graciela dos Santos; Morais, Lucas Vinicius; Silva, Kevin Cezar Nascimento; Ferreira, Elaine Moura; Shio, Marina Tiemi; Romano, Camila Malta; Conde, Carla Regiani; Sabino, Ester Cerdeira; Franca, Carolina Nunes; Nali, Luiz Henrique (Revista do instituto de medicina tropical de sao paulo, 2022)