Silva, Ailton Domicio da, and Maria do Socorro Nantua Evangelista. “ Syndromic Surveillance: Etiologic Study of Acute Febrile Illness in Dengue Suspicious Cases With Negative Serology. Brazil, Federal District, 2008 ”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 52, no. 5, Oct. 2010, pp. 237-42, https://www.revistas.usp.br/rimtsp/article/view/31344.