Environmental risk factors for Cryptosporidium infection in an island from Western Venezuela
Mem. Inst. Oswaldo Cruz
; 103(1): 45-49, Feb. 2008. tab
Article
在 En
| LILACS
| ID: lil-478876
Responsible library:
BR1.1
ABSTRACT
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 percent) were common. Prevalence of the parasite varied among sectors of the community; 34 of 67(50.7 percent) 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.
Key words
全文:
1
索引:
LILACS
主要主题:
Sanitation
/
Cryptosporidiosis
/
Cryptosporidium
/
Diarrhea
/
Feces
研究类型:
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
限制:
Aged80
/
Animals
/
Female
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Humans
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Male
国家/地区名称主题:
America do sul
/
Venezuela
语言:
En
期刊:
Mem. Inst. Oswaldo Cruz
期刊主题:
MEDICINA TROPICAL
/
PARASITOLOGIA
年:
2008
类型:
Article
/
Project document