Pereira, L.M.M.B. et al. 2021. Prevalence of hepatitis A in the capitals of the States of North, Southeast and South regions of Brazil: decrease in prevalence and some consequences. Revista do Instituto de Medicina Tropical de São Paulo. 63, (Apr. 2021), e34. DOI:https://doi.org/10.1590/S1678-9946202163034 .