Document Details

Document Type : Article In Journal 
Document Title :
Bionomics and dynamics of the intermediate hosts of Schistosoma in two villages of Menoufia Governorate, Egypt
Bionomics and dynamics of the intermediate hosts of Schistosoma in two villages of Menoufia Governorate, Egypt
 
Document Language : English 
Abstract : This study was conducted to evaluate the prevalence and distribution of the intermediate host snails of schistosome and their relationship with various sanitary and environmental situations in the Nile Delta. Two villages; EI-Kom EI-Akhder and EI-Roda in Menoufia Governorate, with almost the same population size and threaded by different irrigation canals and water streams were chosen. The former is provided with a sewage disposal system covering one-third of the houses. while the latter lacks a municipal disposal system, and most houses, particularly those on the canal banks, dispose of sewage and refuse into the canal. Twenty stations from each village representing different environmental sanitation situations were selected for sanitary survey, and snail and water examinations. The results showed that the most abundant snail in EI-Kom EI-Akhdervillage was Bulinus truncatus while in EI-Roda village it was Biomphalaria alexandrina with significant seasonal variation of their population size. More environmental sanitation parameters were significantly correlated with snail population density [alive and dead] in EI-Kom EI-Akhder village than in EI-Roda village. Principal components factor analysis grouped environmental sanitation parameters into 12 factors in EI-Kom EI-Akhder village and 13 factors in EI-Rodavillage. Stepwise multiple linear regression analysis of the scores of these factors in relation to snail density showed that, parameters related to human excreta and domestic activities Le. pollution parameters, in addition to water velocity were significantly negatively correlated with snail population. While presence of water vegetation and algal blooms of water streams were significantly positively correlated with it. However, salinity and other chemical, physical and biological environmental sanitation parameters were not significant or ignored. Environmental management procedures in addition to chemotherapy. health education and to lesser extent snail chemical control, should be applied under comprehensive integrated control programs to ensure the control of such disease and other related diseases 
ISSN : 0379-7988 
Journal Name : Bulletin of High Institute of Public Health 
Volume : 29 
Issue Number : 1 
Publishing Year : 1420 AH
1999 AD 
Article Type : Article 
Added Date : Sunday, April 22, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
منى حسنhassan, mona ResearcherDoctorate 

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