Evidence map›Paper›PMID 28396423›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

El Niño and the shifting geography of cholera in Africa.

Sean M Moore, Andrew S Azman, Benjamin F Zaitchik, Eric D Mintz, Joan Brunkard, Dominique Legros, Alexandra Hill, Heather McKay, Francisco J Luquero, David Olson and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 1 pooled it
8.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

51 citing papers in PubMed, 1 synthesis or guideline pooled it, 120 citations in OpenAlex.

  1. How climate change can affect cholera incidence and prevalence? A systematic review.Environmental science and pollution research international · 2020
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  18. Ethiopia National Cholera Elimination Plan 2022-2028: Experiences, Challenges, and the Way Forward.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 2 countries.

Sean M MooreDepartment of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205.
Andrew S AzmanDepartment of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205.
Benjamin F ZaitchikDepartment of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD 21218.
Eric D MintzDivision of Foodborne, Waterborne and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30329.
Joan BrunkardDivision of Foodborne, Waterborne and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30329.
Dominique LegrosDepartment of Pandemic and Epidemic Diseases, World Health Organization, 1211, Geneva, Switzerland.
Alexandra HillDepartment of Pandemic and Epidemic Diseases, World Health Organization, 1211, Geneva, Switzerland.
Heather McKayDepartment of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205.
Francisco J LuqueroEpicentre, 75012 Paris, France.
David OlsonDepartment of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205.
Justin LesslerDepartment of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205; justin@jhu.edu.
Johns Hopkins University · USCenters for Disease Control and Prevention · USWorld Health Organization · CHUniversity of Notre Dame · US

Funding

World Health Organization 001
6 · The paper itself

Abstract

The El Niño Southern Oscillation (ENSO) and other climate patterns can have profound impacts on the occurrence of infectious diseases ranging from dengue to cholera. In Africa, El Niño conditions are associated with increased rainfall in East Africa and decreased rainfall in southern Africa, West Africa, and parts of the Sahel. Because of the key role of water supplies in cholera transmission, a relationship between El Niño events and cholera incidence is highly plausible, and previous research has shown a link between ENSO patterns and cholera in Bangladesh. However, there is little systematic evidence for this link in Africa. Using high-resolution mapping techniques, we find that the annual geographic distribution of cholera in Africa from 2000 to 2014 changes dramatically, with the burden shifting to continental East Africa-and away from Madagascar and portions of southern, Central, and West Africa-where almost 50,000 additional cases occur during El Niño years. Cholera incidence during El Niño years was higher in regions of East Africa with increased rainfall, but incidence was also higher in some areas with decreased rainfall, suggesting a complex relationship between rainfall and cholera incidence. Here, we show clear evidence for a shift in the distribution of cholera incidence throughout Africa in El Niño years, likely mediated by El Niño's impact on local climatic factors. Knowledge of this relationship between cholera and climate patterns coupled with ENSO forecasting could be used to notify countries in Africa when they are likely to see a major shift in their cholera risk.

Indexed as

AfricaCholeraDisease OutbreaksEl Nino-Southern OscillationHumansBayesian mappingcholeraclimate and healthdisease mappingEl Niño Southern Oscillation

Identifiers

PMID28396423
PMCPMC5410791
OpenAlexW2605609889

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.