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CROSS‑BORDER MALARIA IN THE TRIPLE BORDER REGION BETWEEN BRAZIL, VENEZUELA AND GUYANA
Região da tríplice fronteira
Brasil, Venezuela e Guiana
Autor
Afiliación
Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA / Oak Ridge Institute for Science and Education (ORISE), Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA.
Universidade Federal de Roraima. Roraima, Brasil.
Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA.
Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA / Williams Consulting LLC, Catonsville, USA..
Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA
Universidade Federal de Roraima. Roraima, Brasil.
Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA.
Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA / Williams Consulting LLC, Catonsville, USA..
Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Rio de Janeiro, RJ, Brasil.
Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, USA
Resumen en ingles
The state of Roraima, in Brazil, has recently seen an increase in the number of reported Plasmodium
falciparum infections believed to be imported from neighboring countries. The objective of this study
was to determine the prevalence of Plasmodium species among patients attending malaria health
posts in Roraima and quantify the infections attributable to imported malaria. This cross-sectional
case study was carried out between March 2016 and September 2018. Study participants were
recruited as they exited the malaria health post. Information about residence, occupation and travel
history was collected using a questionnaire. A dried blood spot was collected and used for malaria
diagnosis by PCR. A total of 1222 patients were enrolled. Of the 80% Plasmodium positive samples,
50% were P. falciparum, 34% P. vivax, 8% mixed P. falciparum/P. vivax and 0.2% mixed P. falciparum/P.
ovale infections and 8% tested positive for Plasmodium, but the species could not be identified. 80%
of the malaria patients likely acquired infections in Venezuela and the remaining 20% acquired in
Guyana, Brazil, Suriname and French Guyana. 50% of the study participants reported to be working in
a mine. Results from this study support the hypothesis that imported malaria contribute to the bulk
of malaria diagnosed in Roraima. These findings are in keeping with previous findings and should be
considered when developing malaria control interventions.
Palabras clave en portugues
Malária transfronteiriçaRegião da tríplice fronteira
Brasil, Venezuela e Guiana
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