Calçada, Luciana Martins, Pollyanna Patrícia Rezende Ribeiro, and Janice da Silva Santos. 2009. “ Prevenctive Activity Impact on Vaccination in Exantematic Disease Outbreaks Brazil - 2006 and 2007 ”. Saúde E Sociedade 18 (supl.1): 82-82. https://doi.org/10.1590/S0104-12902009000500037.