SciELO - Scientific Electronic Library Online

 
vol.22 issue6Probable cause of death after reclassification of ill-defined causes on hospital admissions forms in the Unified National Health System, Rio de Janeiro, Brazil"You learn, we teach"?: questioning relations between education and health from the perspective of vulnerability author indexsubject indexarticles search
Home Page  

Services on Demand

Journal

Article

Indicators

Related links

Share


Cadernos de Saúde Pública

On-line version ISSN 1678-4464Print version ISSN 0102-311X

Abstract

SILVA-NUNES, Mônica da et al. The Acre Project: the epidemiology of malaria and arthropod-borne virus infections in a rural Amazonian population. Cad. Saúde Pública [online]. 2006, vol.22, n.6, pp.1325-1334. ISSN 1678-4464.  http://dx.doi.org/10.1590/S0102-311X2006000600021.

The authors describe the baseline malaria prevalence and arbovirus seroprevalence among 467 subjects in an ongoing cohort study in rural Amazonia. Most subjects (72.2%) reported one or more previous episodes of malaria, and 15.6% had been hospitalized for malaria, but only 3.6% of individuals five years or older had malaria parasites detected by microscopy (10 with Plasmodium vivax and 4 with P. falciparum). Antibodies to Alphavirus, Orthobunyavirus, and/or Flavivirus were detected by hemagglutination inhibition (HI) in 42.6% of subjects aged five years or older, with a higher seropositivity rate among males (49.2%) than females (36.2%). Since 98.9% of subjects had been immunized for yellow fever, the presence of cross-reactive antibodies to dengue and other Flaviviruses cannot be ruled out, but at least 12 subjects (3.3%) with IgM antibodies to dengue virus detected by ELISA had a putative recent exposure to this virus.

Keywords : Malaria; Dengue; Arboviruses; Arbovirus Infections; Amazonian Ecosystem.

        · abstract in Portuguese     · text in English     · English ( pdf )