{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T07:34:09Z","timestamp":1792222449017,"version":"4.4.0"},"reference-count":42,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2024,1,4]],"date-time":"2024-01-04T00:00:00Z","timestamp":1704326400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100014417","name":"National Veterinary Research Institute, Pu\u0142awy, Poland","doi-asserted-by":"publisher","award":["S\/477"],"award-info":[{"award-number":["S\/477"]}],"id":[{"id":"10.13039\/501100014417","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Viruses"],"abstract":"<jats:p>Astroviruses (AstVs) are small RNA viruses characterized by a high mutation rate, the ability to recombine, and interspecies transmission, which allows them to infect a multitude of hosts including humans, companion animals, and farmed animals as well as wildlife. AstVs are stable in the environment, and their transmission is usually through the fecal\u2013oral route or via contaminated water and food. Although direct zoonotic transmission was not confirmed, interspecies transmission events have occurred or have been indicated to occur in the past between wild and domestic animals and humans. They cause large economic losses, mainly in the poultry sector, due to gastroenteritis and mortality. In young children, they are the second most common cause of diarrhea. This study involved 166 intestine samples and pools of spleen, lymph node, and kidney samples collected from 352 wild animals, 52 pigs, and 31 companion animals. Astroviruses were detected in the intestine samples and were separately detected in pools of tissue samples prepared for individual animals using a heminested RT-PCR protocol. Amplicons were subjected to Sanger sequencing, and a phylogenetic analysis of 320 nt RNA-dependent RNA polymerase (RdRp) fragments referring to known nt sequences of astroviruses was performed. Astroviral RNA was detected in the intestine samples and\/or tissue pools of red foxes (nine positive intestines and six positive tissue pools), rats (two positive intestines and three positive tissue pools), a cat (one AstV detected in an intestine sample), pigs (eight positive tissue pools), and wild boars (two positive pools of spleens, kidneys, and lymph nodes). No astroviral RNA was detected in wild mustelids, dogs, or other small wild animals including rodents. A phylogenetic analysis revealed that the astroviruses detected during this study were mostly host-specific, such as porcine, canine, and rat astroviruses that were highly homologous to the sequences of reference strains. In one of two wild boars, an AstV distinct to porcine species was found with the highest nt identity to Avastroviruses, i.e., turkey astroviruses, which suggests potential cross-species transmission of the virus, as previously described. Here, we present the first detection of astroviruses in the population of wild animals, companion animals, and pigs in Poland, confirming that astroviruses are frequent pathogens circulating in animals in the field. Our study also suggests potential cross-species transmission of Avaastrovirus to wild boars; however, further molecular characterization is needed.<\/jats:p>","DOI":"10.3390\/v16010080","type":"journal-article","created":{"date-parts":[[2024,1,4]],"date-time":"2024-01-04T05:23:30Z","timestamp":1704345810000},"page":"80","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Prevalence of Astroviruses in Different Animal Species in Poland"],"prefix":"10.3390","volume":"16","author":[{"given":"Konrad","family":"Kuczera","sequence":"first","affiliation":[{"name":"Voivodship Veterinary Inspectorate Katowice, ul. Brynowska 25a, 40-585 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5781-115X","authenticated-orcid":false,"given":"Anna","family":"Or\u0142owska","sequence":"additional","affiliation":[{"name":"Department of Virology, National Veterinary Research Institute, 24-100 Pu\u0142awy, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5957-846X","authenticated-orcid":false,"given":"Marcin","family":"Smreczak","sequence":"additional","affiliation":[{"name":"Department of Virology, National Veterinary Research Institute, 24-100 Pu\u0142awy, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7169-3735","authenticated-orcid":false,"given":"Maciej","family":"Frant","sequence":"additional","affiliation":[{"name":"Department of Swine Diseases, National Veterinary Research Institute, 24-100 Pu\u0142awy, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pawe\u0142","family":"Tr\u0119bas","sequence":"additional","affiliation":[{"name":"Department of Virology, National Veterinary Research Institute, 24-100 Pu\u0142awy, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0615-4444","authenticated-orcid":false,"given":"Jerzy","family":"Rola","sequence":"additional","affiliation":[{"name":"Department of Virology, National Veterinary Research Institute, 24-100 Pu\u0142awy, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,1,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"e2002324118","DOI":"10.1073\/pnas.2002324118","article-title":"Ranking the risk of animal-to-human spillover for newly discovered viruses","volume":"118","author":"Grange","year":"2021","journal-title":"Proc. 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