Mathematics – Logic
Scientific paper
Oct 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3619401a&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 19, CiteID L19401
Mathematics
Logic
3
Hydrology: Hydroclimatology, Hydrology: Drought, Hydrology: Floods, Hydrology: Precipitation (3354), Hydrology: Streamflow
Scientific paper
Cholera has reemerged as a global killer with the world witnessing an unprecedented rise in cholera infection and transmission since the 1990s. Cholera outbreaks across most affected areas show infection patterns with a single annual peak. However, cholera incidences in the Bengal Delta region, the native homeland of cholera, show bi-annual peaks. The mechanisms behind this unique seasonal dual peak phenomenon in cholera dynamics, especially the role of climatic and hydrologic variables, are not fully understood. Here, we show that low flow in the Brahmaputra and the Ganges during spring is associated with the first outbreaks of cholera in Bangladesh; elevated spring cholera outbreaks are seen in low discharge years. Peak streamflow of these rivers, on the other hand, create a different cholera transmission environment; peak flood volumes and extent of flood-affected areas during monsoon are responsible for autumn cholera outbreaks. Our results demonstrate how regional hydroclimatology may explain the seasonality and dual peaks of cholera incidence in the Bengal Delta region. A quantitative understanding of the relationships among the hydroclimatological drivers and seasonal cholera outbreaks will help early cholera detection and prevention efforts.
Akanda Ali Shafqat
Islam Shafiqul
Jutla Antarpreet Singh
No associations
LandOfFree
Dual peak cholera transmission in Bengal Delta: A hydroclimatological explanation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dual peak cholera transmission in Bengal Delta: A hydroclimatological explanation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual peak cholera transmission in Bengal Delta: A hydroclimatological explanation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1513122