Environmental risk factors for Cryptosporidium infection in an island from Western Venezuela
Few investigations have been conducted on risk factors for Cryptosporidium infection in communities from developing countries. A study was conducted to determine the prevalence and risk factors for cryptosporidiosis in San Carlos island, Venezuela. A sample of 515 subjects (mean age ± SD: 21.4 ± 17.8 years) was surveyed. Single fecal specimens were collected and modified Ziehl-Neelsen carbolfuchsin staining of formalin-ether concentrate stools were examined for identification of the parasite. Infections with Cryptosporidium (67 of 515, 13%) were common. Prevalence of the parasite varied among sectors of the community; 34 of 67(50.7%) cases of cryptosporidiosis clustered in two sectors with extreme poverty. Variables strongly associated with a higher risk for the infection (p < 0.01) were residing in these sectors versus the remainder, living in a hut or small residence versus a brick or larger house, using an area of backyard rather than a toilet or latrine for defecation, and having contact with soil contaminated with human feces. Crowding was also a risk (p < 0.05). Contact with human feces contaminated-soil may be an important mode of transmission and poverty a predisposing factor for the infection.
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Instituto Oswaldo Cruz, Ministério da Saúde
2008
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oai:scielo:S0074-027620080001000072008-03-17Environmental risk factors for Cryptosporidium infection in an island from Western VenezuelaChacín-Bonilla,LeonorBarrios,FernandoSanchez,Yulaicy Cryptosporidium cryptosporidiosis epidemiology transmission-risk factors Venezuela Few investigations have been conducted on risk factors for Cryptosporidium infection in communities from developing countries. A study was conducted to determine the prevalence and risk factors for cryptosporidiosis in San Carlos island, Venezuela. A sample of 515 subjects (mean age ± SD: 21.4 ± 17.8 years) was surveyed. Single fecal specimens were collected and modified Ziehl-Neelsen carbolfuchsin staining of formalin-ether concentrate stools were examined for identification of the parasite. Infections with Cryptosporidium (67 of 515, 13%) were common. Prevalence of the parasite varied among sectors of the community; 34 of 67(50.7%) cases of cryptosporidiosis clustered in two sectors with extreme poverty. Variables strongly associated with a higher risk for the infection (p < 0.01) were residing in these sectors versus the remainder, living in a hut or small residence versus a brick or larger house, using an area of backyard rather than a toilet or latrine for defecation, and having contact with soil contaminated with human feces. Crowding was also a risk (p < 0.05). Contact with human feces contaminated-soil may be an important mode of transmission and poverty a predisposing factor for the infection.info:eu-repo/semantics/openAccessInstituto Oswaldo Cruz, Ministério da SaúdeMemórias do Instituto Oswaldo Cruz v.103 n.1 20082008-02-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762008000100007en10.1590/S0074-02762008005000007 |
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Chacín-Bonilla,Leonor Barrios,Fernando Sanchez,Yulaicy |
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Chacín-Bonilla,Leonor Barrios,Fernando Sanchez,Yulaicy Environmental risk factors for Cryptosporidium infection in an island from Western Venezuela |
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Chacín-Bonilla,Leonor Barrios,Fernando Sanchez,Yulaicy |
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Chacín-Bonilla,Leonor |
title |
Environmental risk factors for Cryptosporidium infection in an island from Western Venezuela |
title_short |
Environmental risk factors for Cryptosporidium infection in an island from Western Venezuela |
title_full |
Environmental risk factors for Cryptosporidium infection in an island from Western Venezuela |
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Environmental risk factors for Cryptosporidium infection in an island from Western Venezuela |
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Environmental risk factors for Cryptosporidium infection in an island from Western Venezuela |
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environmental risk factors for cryptosporidium infection in an island from western venezuela |
description |
Few investigations have been conducted on risk factors for Cryptosporidium infection in communities from developing countries. A study was conducted to determine the prevalence and risk factors for cryptosporidiosis in San Carlos island, Venezuela. A sample of 515 subjects (mean age ± SD: 21.4 ± 17.8 years) was surveyed. Single fecal specimens were collected and modified Ziehl-Neelsen carbolfuchsin staining of formalin-ether concentrate stools were examined for identification of the parasite. Infections with Cryptosporidium (67 of 515, 13%) were common. Prevalence of the parasite varied among sectors of the community; 34 of 67(50.7%) cases of cryptosporidiosis clustered in two sectors with extreme poverty. Variables strongly associated with a higher risk for the infection (p < 0.01) were residing in these sectors versus the remainder, living in a hut or small residence versus a brick or larger house, using an area of backyard rather than a toilet or latrine for defecation, and having contact with soil contaminated with human feces. Crowding was also a risk (p < 0.05). Contact with human feces contaminated-soil may be an important mode of transmission and poverty a predisposing factor for the infection. |
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Instituto Oswaldo Cruz, Ministério da Saúde |
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2008 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762008000100007 |
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AT chacinbonillaleonor environmentalriskfactorsforcryptosporidiuminfectioninanislandfromwesternvenezuela AT barriosfernando environmentalriskfactorsforcryptosporidiuminfectioninanislandfromwesternvenezuela AT sanchezyulaicy environmentalriskfactorsforcryptosporidiuminfectioninanislandfromwesternvenezuela |
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