Is Cholera outbreak related to climate factors? Report of seven year study from 21th March 1998-to 21th March 2004 in Iran

Abstract

Cholera a main water borne world wide. This study was conducted to in order to find out is there any relation between Cholera outbreak and climate factors. The number of cholera infection during seven years (1998-2004) compared with the same year climate data. In addition the epidemiology of infection was surveyed in order to find out the possible link. The results of this study indicated that with decreasing or increasing from minimum or maximum range of temperature the outbreaks is dropped down sharply. The humidity around 50% is also prepared the best condition for the outbreak too. Cholera outbreaks could be related with many climate factors. Some factors including moderate temperature (25°C) and humidity increase the risk of epidemic conditions. However the rainfall above 294 mm in the rain seasons and high temperature above 49.6 in hot seasons are the major factors which could be related to cholera epidemic.