Exploring Droughts and Floods and Their Association with Cholera Outbreaks in Sub-Saharan Africa: A Register-Based Ecological Study from 1990 to 2010.
Am J Trop Med Hyg
; 98(5): 1269-1274, 2018 05.
Article
en En
| MEDLINE
| ID: mdl-29512484
ABSTRACT
Cholera outbreaks in Africa have been attributed to both droughts and floods, but whether the risk of a cholera outbreak is elevated during droughts is unknown. We estimated the risk of cholera outbreaks during droughts and floods compared with drought- and flood-free periods in 40 sub-Saharan African countries during 1990-2010 based on data from Emergency Events Database the Office of Foreign Disaster Assistance /Centre for Research on the Epidemiology of Disasters International Disaster Database (www.emdat.be). A cholera outbreak was registered in one of every three droughts and one of every 15 floods. We observed an increased incidence rate of cholera outbreaks during drought periods (incidence rate ratio [IRR] = 4.3, 95% confidence interval [CI] = 2.9-7.2) and during flood periods (IRR = 144, 95% CI = 101-208) when compared with drought/flood-free periods. Floods are more strongly associated with cholera outbreaks, yet the prevalence of cholera outbreaks is higher during droughts because of droughts' long durations. The results suggest that droughts in addition to floods call for increased cholera preparedness.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
3_ND
Problema de salud:
3_cholera
/
3_neglected_diseases
Asunto principal:
Cólera
/
Brotes de Enfermedades
/
Sequías
/
Inundaciones
Tipo de estudio:
Etiology_studies
/
Risk_factors_studies
País/Región como asunto:
Africa
Idioma:
En
Revista:
Am J Trop Med Hyg
Año:
2018
Tipo del documento:
Article
País de afiliación:
Dinamarca