title: The burden of dengue: Jundiaí, Brazil - January 2010.
abstract: OBJECTIVE
  To study the antibody prevalence against dengue in the municipality of Jundiaí, São Paulo, Brazil, due to the low number of official confirmed autochthonous cases.
  
  
  METHODS
  A serological study on dengue infection was conducted during January 2010 and previous reports on dengue and entomological surveillance during that period were reviewed.
  
  
  RESULTS
  A prevalence of 7.8% IgG positive (68:876) was found. Furthermore, based on the detection of IgM antibodies in five samples, it was observed that the incidence of dengue in the city at the time of the survey contrasts with the absence of notifications by local health authorities over the same period of time.
  
  
  CONCLUSIONS
  These results highlight the discrepancies between the actual and the detected number of dengue infections, possibly due to significant numbers of asymptomatic infections aggravated by difficulties with dengue clinical diagnosis.
authors.affiliation: Laboratory of Molecular Evolution and Bioinformatics, Department of Microbiology, Biomedical Sciences Institute, Universidade de São Paulo, Brazil. cj.villabona@usp.br
authors.forename: Christian Julián Villabona
authors.initials: CJ
authors.lastname: Arenas
authors.forename: Ana Vitoria
authors.initials: AV
authors.lastname: Botelho
authors.forename: Andrea Cristina
authors.initials: AC
authors.lastname: Botelho
authors.forename: Saulo Duarte
authors.initials: SD
authors.lastname: Passos
authors.forename: Paolo Marinho de Andrade
authors.initials: PM
authors.lastname: Zanotto
mesh_terms: D000330:Aedes / Q000821:virology*; D000818:Animals; D058345:Asymptomatic Infections / Q000453:epidemiology; D001938:Brazil / Q000453:epidemiology; D003715:Dengue / Q000453:epidemiology* / Q000635:transmission / Q000821:virology; D003716:Dengue Virus; D018563:Disease Notification; D019353:Endemic Diseases; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D007075:Immunoglobulin M / Q000097:blood; D007303:Insect Vectors / Q000821:virology; D009032:Mosquito Control; D011159:Population Surveillance / Q000379:methods*; D012698:Serologic Tests
chemical_list: D007074:Immunoglobulin G; D007075:Immunoglobulin M