Factors related to transmission of and infection with Schistosoma mansoni in a village in the South-eastern Region of Brazil
Mem. Inst. Oswaldo Cruz
;
105(4): 570-577, July 2010. tab, ilus
Article
in English
| LILACS
| ID: lil-554832
ABSTRACT
In this transversal study, factors related to infection with and transmission of Schistosoma mansoni were explored. Based on stool examinations of two Kato-Katz smears of a single sample, the prevalences of schistosomiasis and geohelminths were established. In a multivariable analysis, sets of demographic, socio-economic and water contact pattern variables were tested for strength of relation with infection. Males presented a 3.39-times higher risk for infection than females. The age groups between 10-19 years and 20-30 years showed risks of infection 7.1- and 7.5-times higher, respectively, than the control age group between 0-10 years. Individuals practicing leisure activities had a 1.96-times higher risk than those without these activities. The malacological survey identified snails of the species Biomphalaria glabrata, Biomphalaria straminea and Biomphalaria tenagophila. Two exemplars of B. glabrata (0.53 percent) proved positive for S. mansoni. The socio-economic improvements observed in the locality suggest a protective and preventive effect towards infection with schistosomiasis, which requires further investigation with a longitudinal and more detailed study design. Considering our findings, a proposal for an integrated control program should be based on two pillars one horizontal, which involves social empowerment and health education, and another more vertical, which delivers treatment and infrastructure improvements.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Praziquantel
/
Schistosoma mansoni
/
Schistosomiasis mansoni
/
Albendazole
/
Feces
Type of study:
Etiology study
/
Observational study
/
Prevalence study
/
Prognostic study
/
Risk factors
Limits:
Aged80
/
Animals
/
Female
/
Humans
/
Male
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2010
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Fiocruz/BR
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