SEYED VAHID RAZAVI TERMEH
Abstract
Background & objective:Cutaneous leech is one of the six major diseases and an example of epidemic diseases in tropical regions. Prevalence and spread of this disease is affected by environmental factors and climatic conditions as well as economic, social and cultural issues. In this research, Analytic ...
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Background & objective:Cutaneous leech is one of the six major diseases and an example of epidemic diseases in tropical regions. Prevalence and spread of this disease is affected by environmental factors and climatic conditions as well as economic, social and cultural issues. In this research, Analytic Hierarchy Process and network analyzes are used to prepare susceptible cutaneous leeches map. Considering high incidence of cutaneous leech in Khuzestan province, Izeh city was selected as a case study. Materials & Methods: For this purpose, the number of patients affected by this disease in Izeh was obtained from the Provincial Health Center from 2009 to 2014. Information layers of elevation, rainfall, temperature, humidity, distance from river, distance from rural areas and land use were identified as effective parameter and their maps were prepared in GIS environment. Parameters were compared in pairs by using AHP and ANP and weight of each factors determining their impacts was calculated in Expert Choice and Super Decision software. Then these parameters were combined based on their obtained weights in ArcGIS software and the final cutaneous leech map was prepared. Evaluation of these methods was performed using relative operation curve (ROC) and 16 points related to leech disease. Result: The results of weighting effective parameters using AHP and ANP showed that the highest weight is related to elevation, temperature and rainfall parameters, respectively. The results of ROC assessment showed that in preparing the map, ANP had an accuracy of 87.8% and AHP had an accuracy of 68.9%. Conclusion:The results of ANP showed that this model had suitable accuracy in preparing susceptible cutaneous leech map and AHP had moderate accuracy in preparing susceptible cutaneous leech map.
Lida Jarahi; Afsaneh Tayarani Bathaee; Majid Reza Erfanian Taghvayi
Abstract
Background & objective : Because of the diversity in biological conditions on areas with high prevalence of cutaneous leishmaniasis, providing a specific way for controlling disease in all areas is not impractical, so anselection of appropriate disease prevention method for preventing diseases ...
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Background & objective : Because of the diversity in biological conditions on areas with high prevalence of cutaneous leishmaniasis, providing a specific way for controlling disease in all areas is not impractical, so anselection of appropriate disease prevention method for preventing diseases should be selected regardingaccording to the special conditions of each area. This study investigated the effect of physical environment conditions conditions based on the prevalence of cetaceous leishmaniasis in hyperendemic areas in Mashhad, Iran. Materials & Methods: This census study ,with a survey of 2,491 households, were carried out by applying a checklist and observations to evaluate the physical environment conditions and epidemiological factors of cutaneous leishmaniasis in hyperendemic areas in Mashhad in 2012. Data analysis was done with SPSS11.5 software by Chi-square test, and Pvalue less than 0.5 was considered significant. Results: The highest prevalence of cutaneous leishmaniasis was in age group of 10-29 years, in students, college students and housewives people. Poor sanitation, existence of unused land and construction debris near the house and inappropriate yard floor covering (, by creating the suitable circumstances for proliferation sandflies) , had a significant relationship with prevalence of leishmaniasis. Building Cconstruction site near the people residence by itself didwas not show a significant difference in patients groups and healthy individuals Conclusion: If there is no accumulation of construction debris, construction by alone have not important effect ion increasing leishmaniasis. Public education. itself has no important effectPublic notification for increasing the awareness of residents of in hyperendemic areas about physical environment risk factors and training of environmental health actions such as rapid collection removal of construction debris and suitable yard flooring can lead to lower prevalence of cutaneous leishmaniasis with the intervention in sandflies living place.