Epidemiological snapshot of the mansonelliasis infection in the Amazonian riverine communities in two contiguous municipalities of Solimões river, Amazonas State, Brazil

Jansen Fernandes Medeiros; Felipe Arley Costa Pessoa; Moreno Souza Rodrigues; Marilaine Martins

doi:10.5123/S2176-62232015000200011

Authors

Jansen Fernandes Medeiros Laboratório de Entomologia Médica, Fiocruz Rondônia, Porto Velho, Rondônia, Brasil
Felipe Arley Costa Pessoa Laboratório de Ecologia de Doenças Transmissíveis da Amazônia, Instituto Leônidas e Maria Deane, Fiocruz Amazônia, Manaus, Amazonas, Brasil
Moreno Souza Rodrigues Núcleo de Epidemiologia e Bioestatística, Centro de Pesquisas Gonçalo Moniz, Fiocruz Bahia, Salvador, Bahia, Brasil
Marilaine Martins Gerência de Parasitologia, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brasil

DOI:

https://doi.org/10.5123/S2176-62232015000200011

Keywords:

Mansonelliasis, Mansonella, Epidemiological Profile

Abstract

This study was conducted to gather updated information on the occurrence of Mansonella ozzardi in Codajas, and report new information about filaria found in the riverine communities of Coari, Amazonas State, Brazil. The prevalence (thick blood smear) of infection was 9.4% and 22.0% in Codajas and Coari, respectively. Men (17.1%) had a higher prevalence than women (11.2%) (ANOVA χ² = -4.93; p = 0.02); and the rates significantly increased with age (ANOVA χ² = -11.51; p < 0.001) and in certain occupations such as farming/fishing (29.2%) and retired (27.6%). Municipalities located in the Solimoes river have attracted large numbers of migrant workers due to oil and gas exploration in the area, and this may facilitate the spread of filariasis to other non-endemic areas.