Importation and early local transmission of COVID-19 in Brazil, 2020 - Jesus, Jaqueline Goes de; Sacchi, Claudio; Candido, Darlan da Silva; Claro, Ingra Morales; Sale, Flavia Cristina Silva; Manuli, Erika Regina; Silva, Daniela Bernardes Borges da; Paiva, Terezinha Maria de; Pinho, Margarete Aparecida Benega; Sabino, Ester Cerdeira (Revista do instituto de medicina tropical de sao paulo, 2020)