Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of Brazil
Abstract INTRODUCTION: The development of the São Francisco River Integration Project [Projeto de Integração do Rio São Francisco (PISF)] in the State of Ceará, Brazil, has resulted in environmental and socioeconomic changes with potential risks to public health. We aimed to determine the presence...
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| Format: | Article |
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Sociedade Brasileira de Medicina Tropical (SBMT)
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| Series: | Revista da Sociedade Brasileira de Medicina Tropical |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822017000500658&lng=en&tlng=en |
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| author | José Damião da Silva Filho Marta Cristhiany Cunha Pinheiro Mariana Silva Sousa Vivian da Silva Gomes Issis Maria Nogueira de Castro Alberto Novaes Ramos Júnior Fernando Schemelzer de Moraes Bezerra |
| author_facet | José Damião da Silva Filho Marta Cristhiany Cunha Pinheiro Mariana Silva Sousa Vivian da Silva Gomes Issis Maria Nogueira de Castro Alberto Novaes Ramos Júnior Fernando Schemelzer de Moraes Bezerra |
| author_sort | José Damião da Silva Filho |
| collection | DOAJ |
| description | Abstract INTRODUCTION: The development of the São Francisco River Integration Project [Projeto de Integração do Rio São Francisco (PISF)] in the State of Ceará, Brazil, has resulted in environmental and socioeconomic changes with potential risks to public health. We aimed to determine the presence of Schistosoma mansoni infections in schoolchildren (aged 7-14 years) and workers from the construction site in an area under the direct influence of the PISF in the municipality of Brejo Santo-CE, to aid in the prevention and control of schistosomiasis. METHODS: We conducted a cross-sectional study using two S. mansoni-detection methods: detection of S. mansoni eggs by the Kato-Katz parasitological method in stool samples (assessed in triplicate for each sample) and S. mansoni circulating cathodic antigen by the point-of-care immunochromatographic rapid test (POC-CCA) in urine. RESULTS In general, the positivity rates for S. mansoni detection were 1.9% (2/106) among schoolchildren and 2.9% (4/138) among workers. No child had evidence of S. mansoni eggs in their stools; 1.9% tested positive by the POC-CCA method. Among workers, two (1.4%) tested positive by the Kato-Katz test and three (2.2%) by the POC-CCA test. If the POC-CCA test results that were scored as traces were considered negative, then the positivity rates dropped to 0.9% and 0.7% for schoolchildren and workers, respectively. CONCLUSIONS: The active transmission of schistosomiasis in a region covered by the PISF was recognized, reinforcing the necessity to consolidate surveillance and control actions, as well as structural sanitation measures to reverse the social determinants of the disease. |
| first_indexed | 2024-04-12T10:58:55Z |
| format | Article |
| id | doaj.art-57bb67ca09484068b746be63da47f9ab |
| institution | Directory Open Access Journal |
| issn | 1678-9849 |
| language | English |
| last_indexed | 2024-04-12T10:58:55Z |
| publisher | Sociedade Brasileira de Medicina Tropical (SBMT) |
| record_format | Article |
| series | Revista da Sociedade Brasileira de Medicina Tropical |
| spelling | doaj.art-57bb67ca09484068b746be63da47f9ab2022-12-22T03:36:01ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical1678-984950565866510.1590/0037-8682-0299-2017S0037-86822017000500658Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of BrazilJosé Damião da Silva FilhoMarta Cristhiany Cunha PinheiroMariana Silva SousaVivian da Silva GomesIssis Maria Nogueira de CastroAlberto Novaes Ramos JúniorFernando Schemelzer de Moraes BezerraAbstract INTRODUCTION: The development of the São Francisco River Integration Project [Projeto de Integração do Rio São Francisco (PISF)] in the State of Ceará, Brazil, has resulted in environmental and socioeconomic changes with potential risks to public health. We aimed to determine the presence of Schistosoma mansoni infections in schoolchildren (aged 7-14 years) and workers from the construction site in an area under the direct influence of the PISF in the municipality of Brejo Santo-CE, to aid in the prevention and control of schistosomiasis. METHODS: We conducted a cross-sectional study using two S. mansoni-detection methods: detection of S. mansoni eggs by the Kato-Katz parasitological method in stool samples (assessed in triplicate for each sample) and S. mansoni circulating cathodic antigen by the point-of-care immunochromatographic rapid test (POC-CCA) in urine. RESULTS In general, the positivity rates for S. mansoni detection were 1.9% (2/106) among schoolchildren and 2.9% (4/138) among workers. No child had evidence of S. mansoni eggs in their stools; 1.9% tested positive by the POC-CCA method. Among workers, two (1.4%) tested positive by the Kato-Katz test and three (2.2%) by the POC-CCA test. If the POC-CCA test results that were scored as traces were considered negative, then the positivity rates dropped to 0.9% and 0.7% for schoolchildren and workers, respectively. CONCLUSIONS: The active transmission of schistosomiasis in a region covered by the PISF was recognized, reinforcing the necessity to consolidate surveillance and control actions, as well as structural sanitation measures to reverse the social determinants of the disease.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822017000500658&lng=en&tlng=enSão Francisco River transpositionDiagnosisSchistosomiasisSchoolchildrenWorkersEpidemiology |
| spellingShingle | José Damião da Silva Filho Marta Cristhiany Cunha Pinheiro Mariana Silva Sousa Vivian da Silva Gomes Issis Maria Nogueira de Castro Alberto Novaes Ramos Júnior Fernando Schemelzer de Moraes Bezerra Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of Brazil Revista da Sociedade Brasileira de Medicina Tropical São Francisco River transposition Diagnosis Schistosomiasis Schoolchildren Workers Epidemiology |
| title | Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of Brazil |
| title_full | Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of Brazil |
| title_fullStr | Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of Brazil |
| title_full_unstemmed | Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of Brazil |
| title_short | Detection of schistosomiasis in an area directly affected by the São Francisco River large-scale water transposition project in the Northeast of Brazil |
| title_sort | detection of schistosomiasis in an area directly affected by the sao francisco river large scale water transposition project in the northeast of brazil |
| topic | São Francisco River transposition Diagnosis Schistosomiasis Schoolchildren Workers Epidemiology |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86822017000500658&lng=en&tlng=en |
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