{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T15:13:30Z","timestamp":1771254810994,"version":"3.50.1"},"reference-count":43,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2026,2,15]],"date-time":"2026-02-15T00:00:00Z","timestamp":1771113600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>Background: Pulmonary nematodes are an underrecognized cause of respiratory disease in domestic cats, with diagnosis often complicated by nonspecific clinical signs and limitations of fecal-based testing. Methods: This study aimed to assess the prevalence of feline lungworms in Poland and to describe lung ultrasound findings in a separate clinical cohort of cats. A nationwide coprological survey was conducted using pooled fecal samples from 1058 cats examined with Baermann and flotation techniques, supported by molecular diagnostics where available. Results: Overall, 9.83% of cats were positive for at least one parasite. Aelurostrongylus abstrusus was the most frequently detected lungworm (7.18%), followed by Eucoleus aerophilus (2.17%) and Troglostrongylus brevior (0.47%). Lungworm infections were strongly associated with younger age and showed marked seasonal variation, with higher prevalence in autumn and winter. Lung ultrasound consistently revealed diffuse B-line artifacts and other signs of reduced lung aeration, often in the absence of severe respiratory signs. Following treatment with topical imidacloprid\/moxidectin, complete resolution of ultrasonographic abnormalities and clinical signs was observed. Conclusions: These findings confirm that feline pulmonary nematodes are present in Poland and may be underdiagnosed. Lung ultrasound represents a sensitive and non-invasive tool for detecting and monitoring lung involvement, but should be interpreted in conjunction with epidemiological data, parasitological results and therapeutic response.<\/jats:p>","DOI":"10.3390\/ani16040622","type":"journal-article","created":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T14:09:54Z","timestamp":1771250994000},"page":"622","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Prevalence of Pulmonary Nematodes in Cats and Lung Ultrasound Findings in Separate Animal Cohorts: A Coprological, Molecular and Clinical Study"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0845-0810","authenticated-orcid":false,"given":"Dawid","family":"Ja\u0144czak","sequence":"first","affiliation":[{"name":"Department of Infectious and Invasive Diseases and Veterinary Administration, Institute of Veterinary Medicine, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska Str. 1, 87-100 Toru\u0144, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4172-7188","authenticated-orcid":false,"given":"Agata","family":"Moroz-Fik","sequence":"additional","affiliation":[{"name":"Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska Str. 159c, 02-776 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-6512-9564","authenticated-orcid":false,"given":"Karolina","family":"Radziejewska","sequence":"additional","affiliation":[{"name":"Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska Str. 159c, 02-776 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-2601-3106","authenticated-orcid":false,"given":"Aleksandra Kornelia","family":"Maj","sequence":"additional","affiliation":[{"name":"Animallab Veterinary Laboratory, \u015arodkowa Str. 2\/4, 03-430 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Piotr","family":"G\u00f3recki","sequence":"additional","affiliation":[{"name":"Animallab Veterinary Laboratory, \u015arodkowa Str. 2\/4, 03-430 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-5363-7839","authenticated-orcid":false,"given":"Jakub","family":"K\u0119dziorek","sequence":"additional","affiliation":[{"name":"Animallab Veterinary Laboratory, \u015arodkowa Str. 2\/4, 03-430 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-0013-3056","authenticated-orcid":false,"given":"Mateusz","family":"Antecki","sequence":"additional","affiliation":[{"name":"Animallab Veterinary Laboratory, \u015arodkowa Str. 2\/4, 03-430 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8149-7412","authenticated-orcid":false,"given":"Anna Maria","family":"Pyziel","sequence":"additional","affiliation":[{"name":"Department of Public Health Protection and Animal Welfare, Institute of Veterinary Medicine, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska Str. 1, 87-100 Toru\u0144, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olga","family":"Szalu\u015b-Jordanow","sequence":"additional","affiliation":[{"name":"Department of Small Animal Diseases with Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Nowoursynowska Str. 159c, 02-776 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,2,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"242","DOI":"10.1016\/j.jfms.2007.12.002","article-title":"Prevalence study of the lungworm Aelurostrongylus abstrusus in stray cats of Portugal","volume":"10","year":"2008","journal-title":"J. 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