Evidence map›Paper›PMID 29731398›Full record

ArticleThe Lancet. Global health2018

Cholera epidemic in Yemen, 2016-18: an analysis of surveillance data.

Anton Camacho, Malika Bouhenia, Reema Alyusfi, Abdulhakeem Alkohlani, Munna Abdulla Mohammed Naji, Xavier de Radiguès, Abdinasir M Abubakar, Abdulkareem Almoalmi, Caroline Seguin, Maria Jose Sagrado and 16 more

Open access · goldAbstract read
In one paragraph

Article in The Lancet. Global health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed, 3 pooled it
30.3field-weighted citation impact, top 1% 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

94 citing papers in PubMed, 3 syntheses or guidelines pooled it, 261 citations in OpenAlex.

  1. Pooled it
  2. Long-Term Kinetics of Serological Antibodies againstInternational journal of environmental research and public health · 2022
    Pooled it
  3. Identifying potential emerging threats through epidemic intelligence activities-looking for the needle in the haystack?International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2019
    Pooled it
  4. Trial
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  6. Vibriosis-associated acute kidney injury : Incidence and outcome.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
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  11. Public health consequences of global climate change. A narrative review.Frontiers in cellular and infection microbiology · 2026
    Review
  12. bioRxiv : the preprint server for biology · 2025
    Article
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  17. Review
  18. Risk factors for cholera mortality: A scoping review.Tropical medicine & international health : TM & IH · 2025
    Article
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  20. Article

34 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

26 authors at 10 institutions in 8 countries.

Anton CamachoEpicentre, Paris, France; London School of Hygiene & Tropical Medicine, London, UK. Electronic address: anton.camacho@epicentre.msf.org.
Malika BouheniaWorld Health Organization, Sana'a, Yemen.
Reema AlyusfiHealth Authorities, Yemen.
Abdulhakeem AlkohlaniHealth Authorities, Yemen.
Munna Abdulla Mohammed NajiCentral Public Health Laboratory, Sana'a, Yemen.
Xavier de RadiguèsWorld Health Organization, Sana'a, Yemen.
Abdinasir M AbubakarWorld Health Organization, Cairo, Egypt.
Abdulkareem AlmoalmiWorld Health Organization, Sana'a, Yemen.
Caroline SeguinMédecins Sans Frontières, Dubai, United Arab Emirates.
Maria Jose SagradoMédecins Sans Frontières, Barcelona, Spain.
Marc PoncinMédecins Sans Frontières, Geneva, Switzerland.
Melissa McRaeMédecins Sans Frontières, Amsterdam, Netherlands.
Mohammed MusokeMédecins Sans Frontières, Sana'a, Yemen.
Ankur RakeshEpicentre, Paris, France.
Klaudia PortenEpicentre, Paris, France.
Christopher HaskewWorld Health Organization, Geneva, Switzerland.
Katherine E AtkinsLondon School of Hygiene & Tropical Medicine, London, UK.
Rosalind M EggoLondon School of Hygiene & Tropical Medicine, London, UK.
Andrew S AzmanJohns Hopkins School of Public Health, Baltimore, MD, USA.
Marije BroekhuijsenUNICEF, Sana'a, Yemen.
Mehmet Akif SaatciogluWorld Health Organization, Sana'a, Yemen.
Lorenzo PezzoliWorld Health Organization, Geneva, Switzerland.
Marie-Laure QuiliciNational Reference Center for Vibrios and Cholera, Institut Pasteur, Paris, France.
Abdul Rahman Al-MesbahyCentral Public Health Laboratory, Sana'a, Yemen.
Nevio ZagariaWorld Health Organization, Sana'a, Yemen.
Francisco J LuqueroEpicentre, Paris, France.
Sana'a University · YELondon School of Hygiene & Tropical Medicine · GBWorld Health Organization · CHYemenia University · YEInstitut Pasteur · FRJohns Hopkins University · USMédecins Sans Frontières · ESMédecins Sans Frontières · NLMédecins Sans Frontières · CHWorld Health Organization - Egypt · EG

Funding

World Health Organization 001
6 · The paper itself

Abstract

backgroundIn war-torn Yemen, reports of confirmed cholera started in late September, 2016. The disease continues to plague Yemen today in what has become the largest documented cholera epidemic of modern times. We aimed to describe the key epidemiological features of this epidemic, including the drivers of cholera transmission during the outbreak.

methodsThe Yemen Health Authorities set up a national cholera surveillance system to collect information on suspected cholera cases presenting at health facilities. Individual variables included symptom onset date, age, severity of dehydration, and rapid diagnostic test result. Suspected cholera cases were confirmed by culture, and a subset of samples had additional phenotypic and genotypic analysis. We first conducted descriptive analyses at national and governorate levels. We divided the epidemic into three time periods: the first wave (Sept 28, 2016, to April 23, 2017), the increasing phase of the second wave (April 24, 2017, to July 2, 2017), and the decreasing phase of the second wave (July 3, 2017, to March 12, 2018). We reconstructed the changes in cholera transmission over time by estimating the instantaneous reproduction number, R

findingsFrom Sept 28, 2016, to March 12, 2018, 1 103 683 suspected cholera cases (attack rate 3·69%) and 2385 deaths (case fatality risk 0·22%) were reported countrywide. The epidemic consisted of two distinct waves with a surge in transmission in May, 2017, corresponding to a median R

interpretationOur analysis suggests that the small first cholera epidemic wave seeded cholera across Yemen during the dry season. When the rains returned in April, 2017, they triggered widespread cholera transmission that led to the large second wave. These results suggest that cholera could resurge during the ongoing 2018 rainy season if transmission remains active. Therefore, health authorities and partners should immediately enhance current control efforts to mitigate the risk of a new cholera epidemic wave in Yemen.

fundingHealth Authorities of Yemen, WHO, and Médecins Sans Frontières.

Indexed as

EpidemicsPopulation SurveillanceAdolescentAdultAgedAged, 80 and overChildChild, PreschoolCholeraFecesFemaleHumansIncidenceInfantInfant, NewbornMale

Identifiers

PMID29731398
PMCPMC5952990
OpenAlexW2799902886

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.