( f climate variables including humidity ...)El Ni?o cycles linked to cholera outbreaks ,,,Health

f climate variables including humidity in the troposphere layer of the Earth's atmosphere, cloud cover and the amount of absorbed solar radiation -- suggested that the 11-month lag results from a six-month lag between an ENSO and increases in sea-surface temperatures off the coast of Bangladesh, plus a five-month lag between increased sea-surface temperatures and a peak in cholera. These results indicate that the dynamics of cholera in Bangladesh are consistent with a remote forcing by ENSO. The climate-disease story might be even more complicated and needs further research. In the case of Bangladesh, "another mediating factor in the ENSO-cholera relation might be the melting of the snowpack in the Himalayas and its effect on monsoons, precipitation and river discharge. Floods and drought can affect not only human interactions with water resources and therefore exposure to the pathogen, but also sanitary conditions and disease susceptibility.

The discovery of a remote link between El Ni?o events and cholera outbreaks comes at a time when some ecologists, are predicting major increases in disease and death as global climate change provides ideal conditions for disease-causing organisms. Yet, the El Ni?o -cholera model should not be used to predict cholera outbreaks far into the future until climatologists learn more about the frequency of ENSOs over the long term.
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