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Cutaneous Leishmaniasis in Male Schoolchildren in the Upper and Lower Dir Districts of Khyber Pakhtunkhwa, and a Review of Previous Record in Pakistan.

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Documented reports are limited, showing cutaneous leishmaniasis (CL) as a severe threat to schoolchildren in Pakistan. The present study aimed to investigate the clinico-epidemiology and associated risk factors of CL… Click to show full abstract

Documented reports are limited, showing cutaneous leishmaniasis (CL) as a severe threat to schoolchildren in Pakistan. The present study aimed to investigate the clinico-epidemiology and associated risk factors of CL in local and Afghan male schoolchildren between 6 and 16 years of age. The experimental strategy involved a questionnaire for the collection of information and clinical diagnosis (microscopy and semi-nested PCR) of 113 CL symptomatic schoolchildren out of 8,833 schoolchildren (7,175 local and 1,658 Afghan refugees) studying in nineteen schools of the Upper and Lower Dir Districts, Khyber Pakhtunkhwa, Pakistan. Previous records of CL in Pakistan was studied, and spatial analysis was performed on elevation and agro-ecological maps using Arc-GIS v10.3.1. Active lesions were found predominant (n=113, 1.2%: cutaneous lesions, 97, 86%, and lesions with mucosal involvement, 16, 14%) than scars (20, 0.25%). Active lesions of both local (100, 88%) and Afghan refugees (13, 12%), and infected age groups were found significantly different. Majority of the lesions were dry crusted (98, 86.7%), single (83, 73%), and frequently infecting facial region (59, 52%). Avoiding bed nets, living in mud houses and animal shelters were highly associated with CL infection. Temergara (30, 26.5%) and Rabath (14, 12.3%) were hyperendemic CL foci. Microscopically, 71 (63%) cases were positive, while the PCR assay revealed Leishmania tropica in 110 (97.3%) cases. Previous record revealed that L. tropica is dominant throughout Pakistan, and dry mountains and plateaus of northwestern and southwestern regions are spatially at high-risk. Measures should be taken to reduce CL infection by eliminating the associated risk factors, promoting PCR-based diagnosis and basic medical facilities.

Keywords: districts khyber; upper lower; dir districts; male schoolchildren; cutaneous leishmaniasis; lower dir

Journal Title: Acta tropica
Year Published: 2020

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