Impact of Rainfall on The Distribution of Water-Borne Diseases: The Case of Viral Hepatitis http://www.doi.org/10.26538/tjnpr/v7i6.11
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Abstract
Waterborne diseases, including infection by viral hepatitis, represents a significant public health problem in many parts of the world, particularly in Morocco. They are sensitive to environmental conditions. Some or all are likely to be affected by climate change, which could alter their risk. The objective of this work is to study the impact of rainfall on the evolution of viral hepatitis in the prefecture of Meknes during the 2010-2014period. The number of cases of water-borne viral hepatitis between 2010 and 2014 were obtained from prefectural epidemiology unit of Meknes, while the climatic variables were obtained from the meteorological station of the Agropolis
agribusiness and research center of the region of Meknes. The epidemiological situation of viral hepatitis in the study area shows that the prefecture of Meknes was still affected by this epidemic during all the years of the study with a rate which reached 95 cases in 2012. In addition, this study shows that the years of heavy rainfall have seen a decrease in viral hepatitis cases. Climatic factors can therefore affect public health. In fact, heavy rainfall can reduce the risk of the appearance of diseases, in particular viral hepatitis, by reducing water pollution by dilution. Hence the need to encourage studies to improve knowledge and scientific evidence of the association
between health and climate, and to integrate climatic factors into epidemic surveillance systems.
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