{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T03:22:57Z","timestamp":1790738577401,"version":"4.1.0"},"reference-count":63,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2021,7,23]],"date-time":"2021-07-23T00:00:00Z","timestamp":1626998400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Viruses"],"abstract":"<jats:p>In the past, cats were considered resistant to influenza. Today, we know that they are susceptible to some influenza A viruses (IAVs) originating in other species. Usually, the outcome is only subclinical infection or a mild fever. However, outbreaks of feline disease caused by canine H3N2 IAV with fever, tachypnoea, sneezing, coughing, dyspnoea and lethargy are occasionally noted in shelters. In one such outbreak, the morbidity rate was 100% and the mortality rate was 40%. Recently, avian H7N2 IAV infection occurred in cats in some shelters in the USA, inducing mostly mild respiratory disease. Furthermore, cats are susceptible to experimental infection with the human H3N2 IAV that caused the pandemic in 1968. Several studies indicated that cats worldwide could be infected by H1N1 IAV during the subsequent human pandemic in 2009. In one shelter, severe cases with fatalities were noted. Finally, the highly pathogenic avian H5N1 IAV can induce a severe, fatal disease in cats, and can spread via cat-to-cat contact. In this review, the Advisory Board on Cat Diseases (ABCD), a scientifically independent board of experts in feline medicine from 11 European countries, summarises current data regarding the aetiology, epidemiology, pathogenesis, clinical picture, diagnostics, and control of feline IAV infections, as well as the zoonotic risks.<\/jats:p>","DOI":"10.3390\/v13081435","type":"journal-article","created":{"date-parts":[[2021,7,23]],"date-time":"2021-07-23T10:31:44Z","timestamp":1627036304000},"page":"1435","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":40,"title":["Influenza Virus Infections in Cats"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9160-1455","authenticated-orcid":false,"given":"Tadeusz","family":"Frymus","sequence":"first","affiliation":[{"name":"Department of Small Animal Diseases with Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences\u2014SGGW, 02-787 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S\u00e1ndor","family":"Bel\u00e1k","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences and Veterinary Public Health (BVF), Swedish University of Agricultural Sciences (SLU), P.O. Box 7036, 750 07 Uppsala, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6852-5936","authenticated-orcid":false,"given":"Herman","family":"Egberink","sequence":"additional","affiliation":[{"name":"Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, University of Utrecht, 3584 CL Utrecht, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9750-4296","authenticated-orcid":false,"given":"Regina","family":"Hofmann-Lehmann","sequence":"additional","affiliation":[{"name":"Clinical Laboratory, Center for Clinical Studies, Department of Clinical Diagnostics and Services, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9552-1199","authenticated-orcid":false,"given":"Fulvio","family":"Marsilio","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Medicine, Universit\u00e0 degli Studi di Teramo, 64100 Teramo, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7843-2661","authenticated-orcid":false,"given":"Diane D.","family":"Addie","sequence":"additional","affiliation":[{"name":"Maison Zabal, 64470 Etchebar, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Corine","family":"Boucraut-Baralon","sequence":"additional","affiliation":[{"name":"Scanelis Laboratory, 31770 Colomiers, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katrin","family":"Hartmann","sequence":"additional","affiliation":[{"name":"Clinic of Small Animal Medicine, Centre for Clinical Veterinary Medicine, LMU Munich, 80539 Munich, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Albert","family":"Lloret","sequence":"additional","affiliation":[{"name":"Fundaci\u00f3 Hospital Cl\u00ednic Veterinari, Universitat Aut\u00f2noma de Barcelona, Bellaterra, 08193 Barcelona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hans","family":"Lutz","sequence":"additional","affiliation":[{"name":"Clinical Laboratory, Center for Clinical Studies, Department of Clinical Diagnostics and Services, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Grazia","family":"Pennisi","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze Veterinarie, Universit\u00e0 di Messina, 98168 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9585-7933","authenticated-orcid":false,"given":"Etienne","family":"Thiry","sequence":"additional","affiliation":[{"name":"Veterinary Virology and Animal Viral Diseases, FARAH Research Centre, Department of Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, Li\u00e8ge University, B-4000 Li\u00e8ge, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Uwe","family":"Truyen","sequence":"additional","affiliation":[{"name":"Institute of Animal Hygiene and Veterinary Public Health, University of Leipzig, 04103 Leipzig, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4059-1402","authenticated-orcid":false,"given":"S\u00e9verine","family":"Tasker","sequence":"additional","affiliation":[{"name":"Bristol Veterinary School, University of Bristol, Bristol BS40 5DU, UK"},{"name":"Linnaeus Group, Shirley, Solihull B90 4BN, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karin","family":"M\u00f6stl","sequence":"additional","affiliation":[{"name":"Institute of Virology, Department for Pathobiology, University of Veterinary Medicine, 1210 Vienna, Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4313-5023","authenticated-orcid":false,"given":"Margaret J.","family":"Hosie","sequence":"additional","affiliation":[{"name":"MRC\u2014University of Glasgow Centre for Virus Research, Glasgow G61 1QH, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,7,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1038\/s41572-018-0002-y","article-title":"Influenza","volume":"28","author":"Krammer","year":"2018","journal-title":"Nat. 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