{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T22:42:51Z","timestamp":1773009771776,"version":"3.50.1"},"reference-count":48,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,10,15]],"date-time":"2025-10-15T00:00:00Z","timestamp":1760486400000},"content-version":"vor","delay-in-days":287,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100004829","name":"Department of Science and Technology of Sichuan Province","doi-asserted-by":"publisher","award":["2022ZDZX0017"],"award-info":[{"award-number":["2022ZDZX0017"]}],"id":[{"id":"10.13039\/501100004829","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Transboundary and Emerging Diseases"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:p>\n                    Coronaviruses (CoVs) can cross species barriers and endanger public health. Despite reports on their circulation and evolution in companion animals during the pandemic, postpandemic surveillance remains crucial. Therefore, during the first postpandemic year, 309 samples from 263 companion animals (cats and dogs) in Chengdu, China, were detected for CoVs using a universal assay based on Rdrp genes combined with one\u2010generation sequencing. Four kinds of CoVs, including feline CoV (FCoV), canine CoV (CCoV), CRCoV, and SARS\u2010CoV\u20102 (the first reported case of SARS\u2010CoV\u20102 in a dog in mainland China, confirmed by viral nucleic acid detection and analysis), were detected with an overall positive rate of 21.7% (57\/263); FCoV\u2010I and CCoV\u2010IIa were the dominant genotypes, and of these 57 positive cases, 71.9% (41\/57) were in pets \u226412 months old. In CCoV\u2010positive dogs, 72.2% (13\/18) were coinfected with other viruses (primarily canine parvovirus [CPV], 76.9%; 10\/13), while 13.9% (5\/36) codetection with feline parvovirus (FPV). A 21\u2010nt deletion in two\n                    <jats:italic>FCoV S<\/jats:italic>\n                    genes and a 145\u2010nt deletion in one\n                    <jats:italic>FCoV ORF3abc<\/jats:italic>\n                    gene were identified, and recombination events at positions 919 and 1639\u2009nt in two\n                    <jats:italic>S<\/jats:italic>\n                    genes were noticed. Notably, the amino acid variations in\n                    <jats:italic>FCoV<\/jats:italic>\n                    and\n                    <jats:italic>CCoV S<\/jats:italic>\n                    genes revealed distinct regional adaptations: FCoV strains showed unique substitutions (e.g., Ala\/Ser129Leu) and a shift from RSRR to RARR furin cleavage motifs; CCoV strains in China exhibited significant differences from those in other countries. Phylogenetic analysis demonstrated that the\n                    <jats:italic>S<\/jats:italic>\n                    genes of FCoV and CCoV were closely related to those of the prevalent strains in China, whereas the\n                    <jats:italic>S<\/jats:italic>\n                    genes of CRCoV were closely related to that of human CoV (HCoV) OC43. These findings highlight the need for continued surveillance of CoV infection in companion animals (especially \u226412 months old) in the postpandemic era.\n                  <\/jats:p>","DOI":"10.1155\/tbed\/7589098","type":"journal-article","created":{"date-parts":[[2025,10,16]],"date-time":"2025-10-16T06:49:21Z","timestamp":1760597361000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Circulation and Genetic Characterizations of Coronaviruses From Companion Animals in Chengdu, Southwest China: One\u2010Year 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