CASTIÑEIRAS, Anna Carla Pinto et al. The decline of measles antibody titers in previously vaccinated adults: a cross-sectional analysis. Revista do Instituto de Medicina Tropical de São Paulo, São Paulo, Brasil, v. 66, p. e04, 2024. DOI: 10.1590/S1678-9946202466004 . Disponível em: https://www.journals.usp.br/rimtsp/article/view/221562.. Acesso em: 8 may. 2024.