Schistosomiasis in a low prevalence area: incomplete urbanization increasing risk of infection in Paracambi, RJ, Brazil
The risk of schistosomiais infection and heavy infection in the locality of Sabugo was evaluated in relation to housing in areas with different urbanization development and to residential supply with snail-infested water. Critical sanitary conditions were found in areas of incomplete urbanization, w...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
1995-08-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761995000400004 |
| _version_ | 1797757275999305728 |
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| author | Marisa S. Soares Magali G. M. Barreto Cesar Luiz P. A. Coelho da Silva José B. Pereira Patrícia G. Moza Luis Rey Mônica S. Calçado Adriana Lustoza Renato Maspero |
| author_facet | Marisa S. Soares Magali G. M. Barreto Cesar Luiz P. A. Coelho da Silva José B. Pereira Patrícia G. Moza Luis Rey Mônica S. Calçado Adriana Lustoza Renato Maspero |
| author_sort | Marisa S. Soares |
| collection | DOAJ |
| description | The risk of schistosomiais infection and heavy infection in the locality of Sabugo was evaluated in relation to housing in areas with different urbanization development and to residential supply with snail-infested water. Critical sanitary conditions were found in areas of incomplete urbanization, where healthy water supply sources were scarce, and draining of sewage, without previous treatment, was made directly to the water-bodies used for domestic and leisure activities, despite being Biomphalaria tenagophila snail breeding-places. Stool examinations (Kato-Katz and Lutz methods) showed prevalence of 2.9%, mean intensity of 79 eggs per gram of stool and 47% of positive cases presenting intense infection. The use of snail-contaminated water for domestic purposes was considered a risk factor for infection. It is concluded that incomplete urbanization would facilitate transmission, probably enhancing the intensity of infection and that a low prevalence could hide a highly focal transmission. The relevance of these facts upon the efficiency of epidemiologic study methods and disease control planning are then discussed. |
| first_indexed | 2024-03-12T18:12:34Z |
| format | Article |
| id | doaj.art-ad14e1217afc4ed28d23dc80ea3a5f82 |
| institution | Directory Open Access Journal |
| issn | 0074-0276 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T18:12:34Z |
| publishDate | 1995-08-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-ad14e1217afc4ed28d23dc80ea3a5f822023-08-02T09:14:13ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80601995-08-0190445145810.1590/S0074-02761995000400004Schistosomiasis in a low prevalence area: incomplete urbanization increasing risk of infection in Paracambi, RJ, BrazilMarisa S. SoaresMagali G. M. BarretoCesar Luiz P. A. Coelho da SilvaJosé B. PereiraPatrícia G. MozaLuis ReyMônica S. CalçadoAdriana LustozaRenato MasperoThe risk of schistosomiais infection and heavy infection in the locality of Sabugo was evaluated in relation to housing in areas with different urbanization development and to residential supply with snail-infested water. Critical sanitary conditions were found in areas of incomplete urbanization, where healthy water supply sources were scarce, and draining of sewage, without previous treatment, was made directly to the water-bodies used for domestic and leisure activities, despite being Biomphalaria tenagophila snail breeding-places. Stool examinations (Kato-Katz and Lutz methods) showed prevalence of 2.9%, mean intensity of 79 eggs per gram of stool and 47% of positive cases presenting intense infection. The use of snail-contaminated water for domestic purposes was considered a risk factor for infection. It is concluded that incomplete urbanization would facilitate transmission, probably enhancing the intensity of infection and that a low prevalence could hide a highly focal transmission. The relevance of these facts upon the efficiency of epidemiologic study methods and disease control planning are then discussed.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761995000400004schistosomiasisSchistosoma mansoniepidemiologyurbanizationlow prevalenceriskBrazil |
| spellingShingle | Marisa S. Soares Magali G. M. Barreto Cesar Luiz P. A. Coelho da Silva José B. Pereira Patrícia G. Moza Luis Rey Mônica S. Calçado Adriana Lustoza Renato Maspero Schistosomiasis in a low prevalence area: incomplete urbanization increasing risk of infection in Paracambi, RJ, Brazil Memorias do Instituto Oswaldo Cruz schistosomiasis Schistosoma mansoni epidemiology urbanization low prevalence risk Brazil |
| title | Schistosomiasis in a low prevalence area: incomplete urbanization increasing risk of infection in Paracambi, RJ, Brazil |
| title_full | Schistosomiasis in a low prevalence area: incomplete urbanization increasing risk of infection in Paracambi, RJ, Brazil |
| title_fullStr | Schistosomiasis in a low prevalence area: incomplete urbanization increasing risk of infection in Paracambi, RJ, Brazil |
| title_full_unstemmed | Schistosomiasis in a low prevalence area: incomplete urbanization increasing risk of infection in Paracambi, RJ, Brazil |
| title_short | Schistosomiasis in a low prevalence area: incomplete urbanization increasing risk of infection in Paracambi, RJ, Brazil |
| title_sort | schistosomiasis in a low prevalence area incomplete urbanization increasing risk of infection in paracambi rj brazil |
| topic | schistosomiasis Schistosoma mansoni epidemiology urbanization low prevalence risk Brazil |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761995000400004 |
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