Geographic distribution and expansion of hepatitis A and a dysentery cases in Black Sea catchment region in Turkey

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This paper focused on the investigation and mapping of water-related communicable diseases in the Black Sea Catchment area in Turkey by using Geographical Information System (GIS) technology. The official health statistics on Hepatitis-A and Amebic Dysentery from 2000 to 2009 were investigated and evaluated considering the incidence rates. Epidemic, hyper-endemic and endemic thresholds were set regarding the general trends of the incidence rates for both diseases. Time series maps were created to introduce the variation of the incidence rates using GIS. Results interpreting the thematic maps were confirmed with the Mann Whitney U Test statistical analysis and the Spearman correlation analysis. A significant and slight descending trend for Hepatitis A and A Dysentery was detected in the observation period. 16 provinces were assigned as high or low risk-areas regarding the epidemic potential. The downward trend observed could be explained as a result of the wide spread application of best water treatment technologies within the acquisition period for European Union.

Original languageEnglish
Pages (from-to)554-560
Number of pages7
JournalFresenius Environmental Bulletin
Issue number2
Publication statusPublished - 2019

Bibliographical note

Publisher Copyright:
© by PSP.


This paper is a part of the work conducted in EnviroGRIDS Project. The authors would like to acknowledge the European Commission ‘‘Seventh Framework Program’’ which funded the EnviroGRIDS project (Grant Agreement No. 227640). The authors also acknowledge the Turkish Ministry of Health for providing the data for this study.

FundersFunder number
Turkish Ministry of Health
European Commission
Seventh Framework Programme227640


    • A Dysentery
    • GIS
    • Geographic distribution
    • Health statistics
    • Hepatitis A
    • Spatial epidemiology


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