Evidence map›Paper›PMID 28050021›Full record

ArticleEmerging microbes & infections2017

Systematic, active surveillance for Middle East respiratory syndrome coronavirus in camels in Egypt.

Mohamed A Ali, Mahmoud M Shehata, Mokhtar R Gomaa, Ahmed Kandeil, Rabeh El-Shesheny, Ahmed S Kayed, Ahmed N El-Taweel, Mohamed Atea, Nagla Hassan, Ola Bagato and 8 more

Abstract read
In one paragraph

Article in Emerging microbes & infections, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

55 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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  14. Experimental re-infected cats do not transmit SARS-CoV-2.Emerging microbes & infections · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

18 authors.

Mohamed A AliCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Mahmoud M ShehataCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Mokhtar R GomaaCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Ahmed KandeilCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Rabeh El-SheshenyCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Ahmed S KayedCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Ahmed N El-TaweelCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Mohamed AteaGeneral Organization of Veterinary Services, Ministry of Agriculture and Land Reclamation, Giza 11772, Egypt.
Nagla HassanGeneral Organization of Veterinary Services, Ministry of Agriculture and Land Reclamation, Giza 11772, Egypt.
Ola BagatoCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Yassmin MoatasimCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Sara H MahmoudCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Omnia KutkatCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Asmaa M MaatouqCenter of Scientific Excellence for Influenza Viruses, National Research Centre, Giza 12311, Egypt.
Ahmed OsmanDepartment of Biochemistry, Faculty of Science, Ain Shams University, Cairo 38105, Egypt.
Pamela P McKenzieDepartment of Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN 77030, USA.
Richard J WebbyDepartment of Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN 77030, USA.
Ghazi KayaliDepartment of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas, Houston, TX 77030, USA.

Funding

NIAID NIH HHS HHSN272201400006C
6 · The paper itself

Abstract

Middle East respiratory syndrome coronavirus (MERS-CoV) causes severe human infections and dromedary camels are considered an intermediary host. The dynamics of natural infection in camels are not well understood. Through systematic surveillance in Egypt, nasal, rectal, milk, urine and serum samples were collected from camels between June 2014 and February 2016. Locations included quarantines, markets, abattoirs, free-roaming herds and farmed breeding herds. The overall seroprevalence was 71% and RNA detection rate was 15%. Imported camels had higher seroprevalence (90% vs 61%) and higher RT-PCR detection rates (21% vs 12%) than locally raised camels. Juveniles had lower seroprevalence than adults (37% vs 82%) but similar RT-PCR detection rates (16% vs 15%). An outbreak in a breeding herd, showed that antibodies rapidly wane, that camels become re-infected, and that outbreaks in a herd are sustained for an extended time. Maternal antibodies titers were very low in calves regardless of the antibody titers of the mothers. Our results support the hypothesis that camels are a reservoir for MERS-CoV and that camel trade is an important route of introducing the virus into importing countries. Findings related to waning antibodies and re-infection have implications for camel vaccine development, disease management and zoonotic threat.

Indexed as

Epidemiological MonitoringMolecular Diagnostic TechniquesSerologic TestsAnimalsAntibodies, ViralBody FluidsCamelusCattleCoronavirus InfectionsDisease OutbreaksEgyptFemaleMaleMiddle East Respiratory Syndrome CoronavirusNasal MucosaRectumAntibodies, ViralRNA, Viral

Identifiers

PMID28050021
PMCPMC5285495

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.