Low transmission areas of schistosomiasis in Venezuela: consequences on the diagnosis, treatment, and control
Schistosomiasis low transmission areas as Venezuela, can be defined as those where the vector exists, the prevalence of active cases is under 25%, individuals with mild intensity of infection predominate and are mostly asymptomatic. These areas are the consequence of effective control programs, howe...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
2006-10-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762006000900006 |
| _version_ | 1797756857622724608 |
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| author | Belkisyolé Alarcón de Noya Raiza Ruiz Guevara Cecilia Colmenares Sandra Losada Oscar Noya |
| author_facet | Belkisyolé Alarcón de Noya Raiza Ruiz Guevara Cecilia Colmenares Sandra Losada Oscar Noya |
| author_sort | Belkisyolé Alarcón de Noya |
| collection | DOAJ |
| description | Schistosomiasis low transmission areas as Venezuela, can be defined as those where the vector exists, the prevalence of active cases is under 25%, individuals with mild intensity of infection predominate and are mostly asymptomatic. These areas are the consequence of effective control programs, however, "silent" epidemiological places are difficult to trace, avoiding the opportune diagnosis and treatment of infected persons. Clinic and abdominal ultrasound have not shown to discriminate infected from uninfected persons in areas where besides Schistosoma mansoni, intestinal parasites are the rule. Under these conditions, serology remains as a very valuable diagnostic tool, since it gives a closer approximation to the true prevalence. In this sense, circumoval precipitin test, ELISA-SEA with sodium metaperiodate, and alkaline phosphatase immunoassay joined to coprology allow the identification of the "schistosomiasis cases". In relation to public health, schistosomiasis has been underestimated by the sanitary authorities and the investment on its control is being transferred to other diseases of major social and political relevance neglecting sanitary efforts and allowing growth of snail population. Some strategies of diagnosis and control should be done before schistosomiasis reemergence occurs in low transmission areas. |
| first_indexed | 2024-03-12T18:07:36Z |
| format | Article |
| id | doaj.art-9ac023603d07450da3a1bd959a3b71ec |
| institution | Directory Open Access Journal |
| issn | 0074-0276 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T18:07:36Z |
| publishDate | 2006-10-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-9ac023603d07450da3a1bd959a3b71ec2023-08-02T09:25:57ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz0074-02761678-80602006-10-01101293510.1590/S0074-02762006000900006Low transmission areas of schistosomiasis in Venezuela: consequences on the diagnosis, treatment, and controlBelkisyolé Alarcón de NoyaRaiza Ruiz GuevaraCecilia ColmenaresSandra LosadaOscar NoyaSchistosomiasis low transmission areas as Venezuela, can be defined as those where the vector exists, the prevalence of active cases is under 25%, individuals with mild intensity of infection predominate and are mostly asymptomatic. These areas are the consequence of effective control programs, however, "silent" epidemiological places are difficult to trace, avoiding the opportune diagnosis and treatment of infected persons. Clinic and abdominal ultrasound have not shown to discriminate infected from uninfected persons in areas where besides Schistosoma mansoni, intestinal parasites are the rule. Under these conditions, serology remains as a very valuable diagnostic tool, since it gives a closer approximation to the true prevalence. In this sense, circumoval precipitin test, ELISA-SEA with sodium metaperiodate, and alkaline phosphatase immunoassay joined to coprology allow the identification of the "schistosomiasis cases". In relation to public health, schistosomiasis has been underestimated by the sanitary authorities and the investment on its control is being transferred to other diseases of major social and political relevance neglecting sanitary efforts and allowing growth of snail population. Some strategies of diagnosis and control should be done before schistosomiasis reemergence occurs in low transmission areas.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762006000900006low transmission areadiagnosisschistosomiasisVenezuela |
| spellingShingle | Belkisyolé Alarcón de Noya Raiza Ruiz Guevara Cecilia Colmenares Sandra Losada Oscar Noya Low transmission areas of schistosomiasis in Venezuela: consequences on the diagnosis, treatment, and control Memorias do Instituto Oswaldo Cruz low transmission area diagnosis schistosomiasis Venezuela |
| title | Low transmission areas of schistosomiasis in Venezuela: consequences on the diagnosis, treatment, and control |
| title_full | Low transmission areas of schistosomiasis in Venezuela: consequences on the diagnosis, treatment, and control |
| title_fullStr | Low transmission areas of schistosomiasis in Venezuela: consequences on the diagnosis, treatment, and control |
| title_full_unstemmed | Low transmission areas of schistosomiasis in Venezuela: consequences on the diagnosis, treatment, and control |
| title_short | Low transmission areas of schistosomiasis in Venezuela: consequences on the diagnosis, treatment, and control |
| title_sort | low transmission areas of schistosomiasis in venezuela consequences on the diagnosis treatment and control |
| topic | low transmission area diagnosis schistosomiasis Venezuela |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762006000900006 |
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