TY - JOUR T1 - Covid-19 and its impact on immunization programs: reflections from Brazil JO - Revista de Saúde Pública A1 - Matos, Camila Carvalho de Souza Amorim A1 - Barbieri, Carolina Luísa Alves A1 - Couto, Marcia Thereza SN - 0034-8910 UL - 10.11606/s1518-8787.2020054003042 VL - 54 Y1 - 2020 PB - Brasil ER -