title: Avian coronavirus in wild aquatic birds.
abstract: We detected a high prevalence (12.5%) of novel avian coronaviruses in aquatic wild birds. Phylogenetic analyses of these coronaviruses suggest that there is a diversity of gammacoronaviruses and deltacoronaviruses circulating in birds. Gammacoronaviruses were found predominantly in Anseriformes birds, whereas deltacoronaviruses could be detected in Ciconiiformes, Pelecaniformes, and Anseriformes birds in this study. We observed that there are frequent interspecies transmissions of gammacoronaviruses between duck species. In contrast, deltacoronaviruses may have more stringent host specificities. Our analysis of these avian viral and host mitochondrial DNA sequences also suggests that some, but not all, coronaviruses may have coevolved with birds from the same order.
authors.affiliation: State Key Laboratory for Emerging Infectious Diseases, Department of Microbiology and Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong Special Administrative Region, Chin.
authors.forename: Daniel K W
authors.initials: DK
authors.lastname: Chu
authors.forename: Connie Y H
authors.initials: CY
authors.lastname: Leung
authors.forename: Martin
authors.initials: M
authors.lastname: Gilbert
authors.forename: Priscilla H
authors.initials: PH
authors.lastname: Joyner
authors.forename: Erica M
authors.initials: EM
authors.lastname: Ng
authors.forename: Tsemay M
authors.initials: TM
authors.lastname: Tse
authors.forename: Yi
authors.initials: Y
authors.lastname: Guan
authors.forename: Joseph S M
authors.initials: JS
authors.lastname: Peiris
authors.forename: Leo L M
authors.initials: LL
authors.lastname: Poon
mesh_terms: D000818:Animals; D000835:Animals, Wild / Q000821:virology*; D001717:Birds / Q000821:virology*; D017934:Coronavirus / Q000145:classification / Q000302:isolation & purification*; D018352:Coronavirus Infections; D008969:Molecular Sequence Data; D010802:Phylogeny