Schistosoma mansoni infection in residents of a riverside community in Eastern Amazon

Author:

Dias Isabelle Helena Lima1ORCID,Fonseca Álvaro Luan Santana1ORCID,de Sousa Sergei Rodrigo Magalhães1ORCID,Gouveia Maria Isabel Montoril2,Ribeiro Layana Rufino2,de Oliveira Goveia Christiane3ORCID,Nogueira Joyce Favacho Cardoso4,Enk Martin Johannes4ORCID,Souza e Guimarães Ricardo José de Paula5ORCID,Lima Karla Valéria Batista6ORCID

Affiliation:

1. a Programa de Pós-Graduação Strictu Sensu em Biologia Parasitária na Amazônia da Universidade do Estado do Pará (UEPA), Belém, Pará, Brazil

2. b Licenciatura plena em Ciências Biológicas, Universidade do Estado do Pará (UEPA), Belém, Pará, Brazil

3. c Laboratório de Malacologia (LABMAL), Seção de Parasitologia, Instituto Evandro Chagas/SVSA/MS, Ananindeua, Pará, Brazil

4. d Laboratório de Parasitoses Intestinais e Esquistossomose (LPIE), Seção de Parasitologia, Instituto Evandro Chagas/SVSA/MS, Ananindeua, Pará, Brazil

5. e Laboratório de Geoprocessamento (LABGEO), Seção de Epidemiologia, Instituto Evandro Chagas/SVSA/MS, Ananindeua, Pará, Brazil

6. f Laboratório de Biologia Molecular, Seção de Bacteriologia e Micologia, Instituto Evandro Chagas/SVSA/MS, Ananindeua, Pará, Brazil

Abstract

ABSTRACT Schistosoma mansoni worms cause a waterborne parasitic disease called schistosomiasis. It commonly affects individuals in lack of sanitation structure. In Brazil, Pará state has Belém as one of the worst sanitation-ranking places in 2023, where schistosomiasis transmission was already documented. This study reports the occurrence of schistosomiasis in residents of Ilha das Onças, an island next to Belém. Stool samples were obtained from participants over 2 years old, all residents from Furo do Rio Grande, one of the rivers on the island. The Kato-Katz technique was performed for parasite investigation in the stool samples. Each participant responded to a sociodemographic and clinical questionnaire. The residences were georeferenced for map designing. Three out of 263 participants were S. mansoni positive, all men, ages ranging from 19 to 41 years old, with low parasitic load. Malacological surveys were carried out, but no Biomphalaria snails were found. Risk factors for schistosomiasis establishment are present on the island, and the lack of sanitation makes it a potential risk area. Malacological surveys are highly encouraged as preventive measures, as well as health surveillance for riverside populations, generating data that will help health authorities in the management and planning of preventive control actions.

Publisher

IWA Publishing

Reference21 articles.

1. Brasil 2014 Vigilância da Esquistossomose Mansoni: Diretrizes técnicas (Schistosomiasis mansoni Surveillance: Technical Guidelines). Available from: https://bvsms.saude.gov.br/bvs/publicacoes/vigilancia_esquistossome_mansoni_diretrizes_tecnicas.pdf/ (accessed 29 september 2023).

2. Brasil 2022 Guia de Vigilância em Saúde (Health Surveillance Guide). Available from: https://bvsms.saude.gov.br/bvs/publicacoes/guia_vigilancia_saude_5ed_rev_atual.pdf/ (accessed 29 September 2023).

3. Dynamics of parasitic diseases and the environmental and sanitation context in cities of the Brazilian Amazon;Correa;J. Parasit. Dis. Diagn. Ther.,2017

4. Caracterização da qualidade da água superficial nos distritos administrativos do município de Belém – PA (Characterization of the quality of surface water in the administrative districts of the municipality of Belém – PA);Costa;Cad. Prudentino Geog.,2022

5. The effect of the number of stool samples on the observed prevalence and the infection intensity with Schistosoma mansoni among a population in an area of low transmission

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