Emerging Infectious Diseases (Apr 2014)

Novel Betacoronavirus in Dromedaries of the Middle East, 2013

  • Patrick C.Y. Woo,
  • Susanna K.P. Lau,
  • Ulrich Wernery,
  • Emily Y.M. Wong,
  • Alan K.L. Tsang,
  • Bobby Johnson,
  • Cyril C.Y. Yip,
  • Candy C.Y. Lau,
  • Saritha Sivakumar,
  • Jian-Piao Cai,
  • Rachel Y.Y. Fan,
  • Kwok-Hung Chan,
  • Ringu Mareena,
  • Kwok-Yung Yuen

DOI
https://doi.org/10.3201/eid2004.131769
Journal volume & issue
Vol. 20, no. 4
pp. 560 – 572

Abstract

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In 2013, a novel betacoronavirus was identified in fecal samples from dromedaries in Dubai, United Arab Emirates. Antibodies against the recombinant nucleocapsid protein of the virus, which we named dromedary camel coronavirus (DcCoV) UAE-HKU23, were detected in 52% of 59 dromedary serum samples tested. In an analysis of 3 complete DcCoV UAE-HKU23 genomes, we identified the virus as a betacoronavirus in lineage A1. The DcCoV UAE-HKU23 genome has G+C contents; a general preference for G/C in the third position of codons; a cleavage site for spike protein; and a membrane protein of similar length to that of other betacoronavirus A1 members, to which DcCoV UAE-HKU23 is phylogenetically closely related. Along with this coronavirus, viruses of at least 8 other families have been found to infect camels. Because camels have a close association with humans, continuous surveillance should be conducted to understand the potential for virus emergence in camels and for virus transmission to humans.

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