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Risk factors for MERS coronavirus infection in dromedary camels in Burkina Faso, Ethiopia, and Morocco, 2015
- Eve Miguel1,2 , Véronique Chevalier1 , Gelagay Ayelet3 , Med Nadir Ben Bencheikh4 , Hiver Boussini5 , Daniel KW Chu6 , Ikhlass El Berbri4 , Ouaffa Fassi-Fihri4 , Bernard Faye7 , Getnet Fekadu8 , Vladimir Grosbois1 , Bryan CY Ng6 , Ranawaka APM Perera6 , TY So6 , Amadou Traore5 , François Roger2 , Malik Peiris6
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View Affiliations Hide AffiliationsAffiliations: 1 Cirad UPR AGIRs, Montpellier, France 2 UMR CNRS, IRD, UM, 5290 MIVEGEC, Montpellier, France 3 National Veterinary Institute, Addis Abeba, Ethiopia 4 Institut Agronomique Vétérinaire Hassan 2, Rabat, Morocco 5 INERA-CNRST, Ouagadougou, Burkina Faso 6 School of Public Health, The University of Hong Kong, Hong Kong Special Adminstrative Region, China 7 Cirad UMR SELMET, Montpellier, France 8 Haramaya university, Dire Dawa, EthiopiaEve Migueleve.miguel ird.fr
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Citation style for this article: Miguel Eve, Chevalier Véronique, Ayelet Gelagay, Ben Bencheikh Med Nadir, Boussini Hiver, Chu Daniel KW, El Berbri Ikhlass, Fassi-Fihri Ouaffa, Faye Bernard, Fekadu Getnet, Grosbois Vladimir, Ng Bryan CY, Perera Ranawaka APM, So TY, Traore Amadou, Roger François, Peiris Malik. Risk factors for MERS coronavirus infection in dromedary camels in Burkina Faso, Ethiopia, and Morocco, 2015. Euro Surveill. 2017;22(13):pii=30498. https://doi.org/10.2807/1560-7917.ES.2017.22.13.30498 Received: 16 Jun 2016; Accepted: 03 Feb 2017
Abstract
Understanding Middle East respiratory syndrome coronavirus (MERS-CoV) transmission in dromedary camels is important, as they consitute a source of zoonotic infection to humans. To identify risk factors for MERS-CoV infection in camels bred in diverse conditions in Burkina Faso, Ethiopia and Morocco, blood samples and nasal swabs were sampled in February–March 2015. A relatively high MERS-CoV RNA rate was detected in Ethiopia (up to 15.7%; 95% confidence interval (CI): 8.2–28.0), followed by Burkina Faso (up to 12.2%; 95% CI: 7–20.4) and Morocco (up to 7.6%; 95% CI: 1.9–26.1). The RNA detection rate was higher in camels bred for milk or meat than in camels for transport (p = 0.01) as well as in younger camels (p = 0.06). High seropositivity rates (up to 100%; 95% CI: 100–100 and 99.4%; 95% CI: 95.4–99.9) were found in Morocco and Ethiopia, followed by Burkina Faso (up to 84.6%; 95% CI: 77.2–89.9). Seropositivity rates were higher in large/medium herds (≥51 camels) than small herds (p = 0.061), in camels raised for meat or milk than for transport (p = 0.01), and in nomadic or sedentary herds than in herds with a mix of these lifestyles (p < 0.005).
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