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Viruses 2015, 7(5), 2358-2377; doi:10.3390/v7052358

Genomic Analysis of 15 Human Coronaviruses OC43 (HCoV-OC43s) Circulating in France from 2001 to 2013 Reveals a High Intra-Specific Diversity with New Recombinant Genotypes

1,2,†,* , 1,2,3,†
Normandie Université, 14032 Caen, France
Université de Caen, Unité de Recherche Risques Microbiens (U2RM), F-14000 Caen, France
Department of Virology, University Hospital of Caen, F-14033 Caen, France
Institut Pasteur, Environment and Infectious Risks Research and Expertise Unit, F-75015 Paris, France
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editor: Eric O. Freed
Received: 25 March 2015 / Revised: 23 April 2015 / Accepted: 4 May 2015 / Published: 7 May 2015
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Human coronavirus OC43 (HCoV-OC43) is one of five currently circulating human coronaviruses responsible for respiratory infections. Like all coronaviruses, it is characterized by its genome’s high plasticity. The objectives of the current study were to detect genetically distinct genotypes and eventually recombinant genotypes in samples collected in Lower Normandy between 2001 and 2013. To this end, we sequenced complete nsp12, S, and N genes of 15 molecular isolates of HCoV-OC43 from clinical samples and compared them to available data from the USA, Belgium, and Hong-Kong. A new cluster E was invariably detected from nsp12, S, and N data while the analysis of nsp12 and N genes revealed the existence of new F and G clusters respectively. The association of these different clusters of genes in our specimens led to the description of thirteen genetically distinct genotypes, among which eight recombinant viruses were discovered. Identification of these recombinant viruses, together with temporal analysis and tMRCA estimation, provides important information for understanding the dynamics of the evolution of these epidemic coronaviruses. View Full-Text
Keywords: genotype; sequencing; coronavirus; phylogeny; recombination; HCoV-OC43 genotype; sequencing; coronavirus; phylogeny; recombination; HCoV-OC43

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Kin, N.; Miszczak, F.; Lin, W.; Gouilh, M.A.; Vabret, A.; Consortium, E. Genomic Analysis of 15 Human Coronaviruses OC43 (HCoV-OC43s) Circulating in France from 2001 to 2013 Reveals a High Intra-Specific Diversity with New Recombinant Genotypes. Viruses 2015, 7, 2358-2377.

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