# Co-circulation of Plasmodium vivax and Arboviruses in the Brazil-French Guiana Border

## TL;DR

The study finds that malaria and arboviruses like dengue and chikungunya commonly co-occur in a tropical region, suggesting the need for combined surveillance.

## Contribution

This study provides new insights into the co-circulation of Plasmodium vivax and arboviruses in the Brazil-French Guiana border region.

## Key findings

- High IgG reactivity for dengue and chikungunya viruses was observed in the study population.
- Co-reactivity between Plasmodium vivax and arboviruses was frequent.
- Zika virus detection was minimal in the tested samples.

## Abstract

Co-circulation of Plasmodium vivax and arboviruses is a significant but underexplored public health concern in tropical regions.

We analyzed 300 serum samples collected between 2014 and 2015 from the Brazil-French Guiana border, including 102 malaria cases and 198 controls, using rapid tests for Immunoglobulin M (IgM), Immunoglobulin G (IgG), and Non-Structural Protein 1 (NS1).

High IgG reactivity for dengue and chikungunya viruses was observed. Co-reactivity was frequent. Zika virus detection was minimal.

The overlapping transmission of P. vivax and arboviruses highlights the need for integrated surveillance strategies to better address co-circulation/co-infection risks.