Journal of Wildlife Diseases最新文献

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High Ectoparasite Loads of Tropical Birds: Chewing Lice on Puerto Rican American Kestrels (Falco sparverius caribaearum). 热带鸟类的高体外寄生虫负荷:波多黎各美洲隼(Falco sparverius caribaearum)身上的嚼虱。
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00100
Martín G Frixione, Sarah E Bush, Dale H Clayton
{"title":"High Ectoparasite Loads of Tropical Birds: Chewing Lice on Puerto Rican American Kestrels (Falco sparverius caribaearum).","authors":"Martín G Frixione, Sarah E Bush, Dale H Clayton","doi":"10.7589/JWD-D-24-00100","DOIUrl":"10.7589/JWD-D-24-00100","url":null,"abstract":"<p><p>Ectoparasite loads of birds may be governed, in part, by the climatic characteristics of their environment. We surveyed live-trapped American Kestrels (Falco sparverius caribaearum) for lice and other ectoparasites on the humid subtropical island of Puerto Rico during March-May 2024. The main goal was to compare the prevalence and abundance of lice on kestrels in Puerto Rico to recently published data on the lice of kestrels 1000 km away in the Bahamas, and to the lice of kestrels in an arid region of the western US (Utah). A brief general inspection of the plumage of 39 captured birds was followed by careful examination of the underside of wing primary feathers under a dissecting microscope. Two species of lice were collected, Colpocephalum subzerafae and Degeeriella carruthi, neither previously recorded from kestrels in Puerto Rico. The same two species are present on kestrels in the Bahamas. The prevalence and abundance of lice on kestrels in Puerto Rico and the Bahamas were similar, while being much greater than the prevalence and abundance of lice on kestrels in arid Utah, US. We also collected two species of hippoboscid flies (Diptera: Hippoboscidae): Microlynchia pusilla, not previously recorded on the American Kestrel, and Ornithoctona erythrocephala. These flies, as well as the lice, might affect the health of kestrels both directly, e.g., causing anemia by feeding on blood, and indirectly by vectoring endoparasites.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"241-246"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142503015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Klebsiella pneumoniae Complex-Associated Peritonitis, Lymphadenitis, and Pyelonephritis in Juvenile Raccoons (Procyon lotor) under Rehabilitator Care in New York, New Jersey, and Wisconsin, USA. 美国纽约、新泽西州和威斯康星州由康复者照料的幼年浣熊(Procyon lotor)的复合肺炎克雷伯氏菌相关腹膜炎、淋巴腺炎和肾盂肾炎。
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00027
Zoe E Mack, Lorelei L Clarke, Elizabeth L Buckles, Rebecca J Franklin-Guild, Elena Alina Demeter
{"title":"Klebsiella pneumoniae Complex-Associated Peritonitis, Lymphadenitis, and Pyelonephritis in Juvenile Raccoons (Procyon lotor) under Rehabilitator Care in New York, New Jersey, and Wisconsin, USA.","authors":"Zoe E Mack, Lorelei L Clarke, Elizabeth L Buckles, Rebecca J Franklin-Guild, Elena Alina Demeter","doi":"10.7589/JWD-D-24-00027","DOIUrl":"10.7589/JWD-D-24-00027","url":null,"abstract":"<p><p>Klebsiella spp. are gram-negative facultative anaerobic heavily encapsulated bacteria associated with opportunistic and primary infections in a wide range of species. We assessed a series of cases (n=8) of necrosuppurative peritonitis, lymphadenitis, and/or pyelonephritis in wild juvenile raccoons (Procyon lotor) that died under rehabilitator care in New York, New Jersey, and Wisconsin, US, between July 2020 and December 2023, plus a retrospective case of a juvenile raccoon necropsied from New York in August 2011. Gross necropsy (n=9) and histopathology (n=9) were performed to characterize the lesions, whereas bacterial culture (n=8) was used to identify and characterize the bacteria and associated phenotype. We observed gram-negative short rods and coccobacilli (7/9; 78%), fibrinosuppurative peritonitis of variable severity (7/9; 78%) correlated to gross pyoabdomen (5/9; 56%) or abscessation (2/9; 22%), lymphadenomegaly and associated necrosuppurative lymphadenitis (5/9; 56%), and urinary tract disease (3/9; 33%). Aerobic culture of affected tissues isolated Klebsiella pneumoniae (n=4), K. pneumoniae subsp. ozaenae (n=2), Klebsiella variicola (n=1), and Klebsiella sp. (n=1). Our study strongly suggests an association of bacteria within the K. pneumoniae complex with peritonitis, lymphadenitis, and pyelonephritis in raccoons. Disease might be associated with underlying nosocomial infection given that all animals were under rehabilitator care at the time of death.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"173-179"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142590852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exosomal Micro RNA Isolation in White-Tailed Deer (Odocoileus virginianus) for Diagnostic Biomarker Discovery. 白尾鹿(Odocoileus virginianus)外泌体微小 RNA 分离用于诊断生物标记物的发现。
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00075
Maite De María, Lillian G Maxwell, Margaret E Hunter, Jason A Ferrante
{"title":"Exosomal Micro RNA Isolation in White-Tailed Deer (Odocoileus virginianus) for Diagnostic Biomarker Discovery.","authors":"Maite De María, Lillian G Maxwell, Margaret E Hunter, Jason A Ferrante","doi":"10.7589/JWD-D-24-00075","DOIUrl":"10.7589/JWD-D-24-00075","url":null,"abstract":"<p><p>Molecular approaches are becoming more prevalent for the diagnosis of neurodegenerative diseases in human medicine and can be extended to diagnosis of wildlife diseases such as chronic wasting disease and other prion diseases. These diseases have been associated with exosome-bound molecular biomarkers of disease progression, such as proteins and micro RNA molecules (miRNA). We tested and optimized a method for exosomal miRNA isolation from minimally invasive, small-volume serum samples obtained from white-tailed deer (Odocoileus virginianus). We confirmed the isolation of exosomes and optimized a commercially available benchtop kit to obtain sufficient and pure RNA for miRNA sequencing. The selected method for RNA extraction combines two 500-μL serum aliquots into one elution column and re-eluting the final product of the column. We identified 137 miRNA present in healthy white-tailed deer that can be used as a baseline to identify putative miRNA biomarkers of disease progression and mechanisms of infection in future comparative disease studies. This approach to biomarker discovery may help to inform biological processes in wildlife populations and provide alternatives to invasive or postmortem samples.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"212-218"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High Prevalence of Sarcocystis in a Collapsed Black Rat (Rattus rattus) Population from the Florida Keys, Florida, USA. 佛罗里达礁岛群塌陷黑鼠(Rattus rattus)中沙囊虫的高流行率。
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00041
Brandon M McDonald, Michael V Cove, Mark G Ruder, Michael J Yabsley, Kayla B Garrett, Alec T Thompson, Nicole M Nemeth, Jeremy D Dixon, Marcus A Lashley
{"title":"High Prevalence of Sarcocystis in a Collapsed Black Rat (Rattus rattus) Population from the Florida Keys, Florida, USA.","authors":"Brandon M McDonald, Michael V Cove, Mark G Ruder, Michael J Yabsley, Kayla B Garrett, Alec T Thompson, Nicole M Nemeth, Jeremy D Dixon, Marcus A Lashley","doi":"10.7589/JWD-D-24-00041","DOIUrl":"10.7589/JWD-D-24-00041","url":null,"abstract":"<p><p>We collected and screened black rats (Rattus rattus) in Key Largo, Florida, USA, to determine the potential role of disease or parasites in the collapse of the local population. Rats appeared healthy, but 94% (n=15/16) tested positive for Sarcocystis sp. The partial 18S rRNA gene sequence was 98.7-99.7% similar to a strain of Sarcocystis zuoi that is now considered a strain of the newly described Sarcocystis kani within the larger S. zuoi species complex that contains numerous new species. These Sarcocystis spp. use Asian snakes as definitive hosts and rodents, shrews, or tree shrews as intermediate hosts. Pythons are the definitive host for several Sarcocystis spp. in Asia, including a related parasite (Sarcocystis singaporensis) that has been used as a biologic control agent for Rattus spp. in southeast Asia. It is probable that increasing numbers of invasive Burmese pythons (Python bivittatus) in the Florida Keys are contributing to the spread of this parasite in addition to imposing predation pressure on both rodents and native snakes. As such, further surveillance and molecular and morphologic characterization of parasites from rodents and snakes in south Florida should be prioritized.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"180-185"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142546231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Molecular Characterization of Ostertagia mossi and Ostertagia dikmansi from White-Tailed Deer (Odocoileus virginianus) Confirms they are the Same Species. 从白尾鹿(Odocoileus virginianus)中提取的 Ostertagia mossi 和 Ostertagia dikmansi 的分子特征证实它们是同一物种。
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00096
C Anderson Smith, Elizabeth A Kurimo-Beechuk, Kayla B Garrett, Mark G Ruder, Ethan P Barton, Michael J Yabsley
{"title":"Molecular Characterization of Ostertagia mossi and Ostertagia dikmansi from White-Tailed Deer (Odocoileus virginianus) Confirms they are the Same Species.","authors":"C Anderson Smith, Elizabeth A Kurimo-Beechuk, Kayla B Garrett, Mark G Ruder, Ethan P Barton, Michael J Yabsley","doi":"10.7589/JWD-D-24-00096","DOIUrl":"10.7589/JWD-D-24-00096","url":null,"abstract":"<p><p>To examine whether Ostertagia mossi and Ostertagia dikmansi from white-tailed deer (Odocoileus virginianus) are separate species, we obtained DNA sequences for the cytochrome C oxidase subunit I and internal transcribed spacer 2 gene targets for phylogenetic analyses. Neither target revealed separation between morphotypes, confirming they are the same species and providing new data on Ostertagia morphotypes.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"267-271"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of RT-QuIC Diagnostic Performance for Chronic Wasting Disease Detection Using Elk (Cervus canadensis) Ear Punches. 利用麋鹿耳孔检测慢性消耗性疾病的RT-QuIC诊断性能评价
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00071
Damani N Bryant, Roxanne J Larsen, Kristin J Bondo, Andrew S Norton, Andrew J Lindbloom, Steven L Griffin, Peter A Larsen, Tiffany M Wolf, Stuart S Lichtenberg
{"title":"Evaluation of RT-QuIC Diagnostic Performance for Chronic Wasting Disease Detection Using Elk (Cervus canadensis) Ear Punches.","authors":"Damani N Bryant, Roxanne J Larsen, Kristin J Bondo, Andrew S Norton, Andrew J Lindbloom, Steven L Griffin, Peter A Larsen, Tiffany M Wolf, Stuart S Lichtenberg","doi":"10.7589/JWD-D-24-00071","DOIUrl":"10.7589/JWD-D-24-00071","url":null,"abstract":"<p><p>Sensitive and specific antemortem diagnostic tests are a prerequisite for effective management of chronic wasting disease (CWD). Paired with readily accessible samples that accurately reflect CWD status, the real-time quaking-induced conversion (RT-QuIC) assay has the potential to enable more effective CWD surveillance and interventions. We evaluated the feasibility of RT-QuIC as a CWD diagnostic test using 6-mm ear tissue biopsies from elk (Cervus canadensis). First, we evaluated the effect of ear spatial location on seeding activity. We observed an effect of ear punch spatial location on the amyloid formation rate (AFR): Samples collected from the periphery of the ear evidenced a statistically significant increase in AFR relative to ear punches from the ventral midline. Gross microdissection of an ear pinna suggested that there was more small nerve innervation around the periphery of the ear. Second, we evaluated the diagnostic sensitivity, specificity, and predictive value of RT-QuIC using ear punches from elk that had been previously diagnosed via ELISA testing. We evaluated the impact of nonstatistical and statistical approaches on diagnostic accuracy. Specificity and positive predictive value were perfect when statistical analyses were used to evaluate the binomial distribution (CWD positive versus CWD negative) of the data. Conversely, sensitivity and negative predictive value were modest, independent of the application of statistical analysis, indicating that RT-QuIC may be susceptible to false-negative data in this context. Taken together, our data support the idea that RT-QuIC, when paired with US Department of Agriculture-approved diagnostic tests, may provide more time to stakeholders for making major management decisions.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"64-75"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142770272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Serologic Evidence of Exposure to Leishmania infantum in Captive and Free-Ranging European Bison (Bison bonasus) in Poland, 2017-23 . 2017-23年波兰圈养和自由放养欧洲野牛(Bison bonasus)暴露于幼年利什曼原虫的血清学证据
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00032
Anna Didkowska, Víctor Martín-Santander, Marlena Wojciechowska, Wanda Olech, Krzysztof Anusz, Antonio Fernández, Janine E Davies, Marta Ruíz de Arcaute, Delia Lacasta, Sergio Villanueva-Saz, Diana Marteles
{"title":"Serologic Evidence of Exposure to Leishmania infantum in Captive and Free-Ranging European Bison (Bison bonasus) in Poland, 2017-23 .","authors":"Anna Didkowska, Víctor Martín-Santander, Marlena Wojciechowska, Wanda Olech, Krzysztof Anusz, Antonio Fernández, Janine E Davies, Marta Ruíz de Arcaute, Delia Lacasta, Sergio Villanueva-Saz, Diana Marteles","doi":"10.7589/JWD-D-24-00032","DOIUrl":"10.7589/JWD-D-24-00032","url":null,"abstract":"<p><p>The European Bison (Bison bonasus) is the largest mammal in Europe and is classified as an endangered species. Leishmaniosis is a vector-borne disease caused by the protozoan Leishmania infantum. In general, this infection has been associated with dogs, cats, and humans. However, epidemiologic studies and reports confirm that the parasite is able to infect many other mammalian species. Recent evidence has demonstrated that ruminants in endemic areas are exposed to L. infantum infection. Moreover, climate change has allowed the northward spread of vector species, causing the expansion of L. infantum infection in regions traditionally classified as nonendemic in Europe. The aim of this study was to determine the presence or absence of anti-L. infantum antibodies in serum samples from 343 European bison in Poland, collected from 2017 to 2023. For this purpose, the presence of anti-Leishmania antibodies was analyzed using an in-house multispecies ELISA. Anti-Leishmania antibodies were detected in four animals, an overall seroprevalence of 1.17%. The results provide scientific evidence of serologic exposure to the parasite in Poland, a country previously considered nonendemic for L. infantum infection.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"253-257"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142807572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Myiasis by the Toad Fly (Lucilia bufonivora; Calliphoidae) in Amphibians in Montana, USA. 美国蒙大拿州两栖动物中的蛤蟆蝇(Lucilia bufonivora; Calliphoidae)寄生虫病。
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00066
Leah M Fischer, Blake R Hossack
{"title":"Myiasis by the Toad Fly (Lucilia bufonivora; Calliphoidae) in Amphibians in Montana, USA.","authors":"Leah M Fischer, Blake R Hossack","doi":"10.7589/JWD-D-24-00066","DOIUrl":"10.7589/JWD-D-24-00066","url":null,"abstract":"<p><p>Toad flies in the genus Lucilia (previously referred to as Bufolucilia spp.) parasitize and cause myiasis in several amphibian species in North America. From 2019 to 2022, we documented Lucilia bufonivora infections in post-metamorphic western toads (Anaxyrus boreas) during amphibian surveys in four wetlands in Glacier National Park, Montana, US. We found nine infected adult toads in 2019, seven infected adults in 2020, one infected juvenile in 2021, and five infected adults plus one infected juvenile in 2022. We also captured Columbia spotted frogs (Rana luteiventris) during these same surveys but detected no infections. Only one of the four wetlands had infected toads in 2019, despite their proximity and hydrologic connectivity, but two of these wetlands had infections in 2020, and a third had a single infection in 2021. The same three of four wetlands had infections in 2022. In 2008, a similar parasitic infection in one western toad had been noted at the same wetland as in 2019. That toad had been captured again two years later without signs of infection.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"206-211"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142290157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rat Hepatitis E Virus Isolates Cluster among Urban Norway Rats (Rattus norvegicus) across a Roadway. 大鼠戊型肝炎病毒分离株在城市挪威鼠(Rattus norvegicus)中跨道路聚集。
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00052
Elly M Blake, Kaylee A Byers, Michael Joseph Lee, Jingxin Cao, Christine Layne, Jamie Borlang, Denise Huynh, Anton Andonov, Kevin S Kuchinski, Jessie Lynch, Sarah J Robinson, Anne-Marie Nicol, Chelsea G Himsworth
{"title":"Rat Hepatitis E Virus Isolates Cluster among Urban Norway Rats (Rattus norvegicus) across a Roadway.","authors":"Elly M Blake, Kaylee A Byers, Michael Joseph Lee, Jingxin Cao, Christine Layne, Jamie Borlang, Denise Huynh, Anton Andonov, Kevin S Kuchinski, Jessie Lynch, Sarah J Robinson, Anne-Marie Nicol, Chelsea G Himsworth","doi":"10.7589/JWD-D-24-00052","DOIUrl":"10.7589/JWD-D-24-00052","url":null,"abstract":"<p><p>Hepatitis E virus (HEV) is a globally distributed pathogen that causes acute hepatitis in people. Recent human cases of HEV arising after contact with urban rats (Rattus spp.) have raised concerns regarding whether rats may be a source of HEV infection. We investigated whether urban Norway rats (Rattus norvegicus) could be a source of HEV in an underserved urban neighborhood of Vancouver, Canada. We found that 15% of rats tested positive for rat HEV, and that HEV status was associated with increasing rat body length and family relationships. Rat HEV isolates were clustered according to their location on either the east or west side of a busy roadway bisecting this neighborhood, suggesting that this street is a barrier to HEV spread. Widespread distribution of HEV among rats in this neighborhood poses potential human health risks, emphasizing the need to reduce close contact of people with rats and their excreta.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"192-198"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
"Luck Be a Lady": Retrospective Study of Disease-Associated Prion (PrPSc) Distribution and Lesions in Captive, Environmentally Exposed Female Rocky Mountain Elk (Cervus canadensis nelsoni) with 132LL Genotype. "幸运女神":与疾病相关的朊病毒(PrPSc)分布以及132LL基因型的人工饲养、暴露于环境中的雌性落基山麋鹿(Cervus canadensis nelsoni)病变的回顾性研究。
IF 1.1 4区 农林科学
Journal of Wildlife Diseases Pub Date : 2025-01-01 DOI: 10.7589/JWD-D-24-00056
Samantha E Allen, Donal O'Toole, Mary E Wood, Peach Van Wick, Lindsay E Parrie, Jennifer L Malmberg, William H Edwards
{"title":"\"Luck Be a Lady\": Retrospective Study of Disease-Associated Prion (PrPSc) Distribution and Lesions in Captive, Environmentally Exposed Female Rocky Mountain Elk (Cervus canadensis nelsoni) with 132LL Genotype.","authors":"Samantha E Allen, Donal O'Toole, Mary E Wood, Peach Van Wick, Lindsay E Parrie, Jennifer L Malmberg, William H Edwards","doi":"10.7589/JWD-D-24-00056","DOIUrl":"10.7589/JWD-D-24-00056","url":null,"abstract":"<p><p>Chronic wasting disease (CWD) is a fatal neurodegenerative disease of cervids caused by an infectious misfolded protein (prion). Several members of the Cervidae, including Rocky Mountain elk (Cervus canadensis nelsoni), are susceptible to CWD. There is no evidence of complete genetic resistance to CWD; the M132L polymorphism in the elk prion protein gene influences the incubation period: longest in 132LL, intermediate in 132ML, and shortest in 132MM elk. We retrospectively analyzed six female 132LL elk housed in an environment heavily contaminated with prions to 1) document clinical outcomes and incubation periods, 2) describe PrPSc distribution and extent in tissues, and 3) characterize their histologic lesions. In five of six elk, PrPSc was detected postmortem, with a distribution pattern distinct from that of 132MM and 132ML elk; time to clinical CWD onset CWD ranged from 73 to 117 mo (6.1-9.8 yr). Although the remaining animal was observed for 220 mo (18.3 yr), PrPSc was not detected in its tissues postmortem. This study suggests that 132LL elk infected via natural exposure may live even longer with CWD than previously thought, but ultimately remain susceptible. We also report a distinct distribution of PrPSc in 132LL genotypes and highlight unusual histologic findings. Understanding the relationship between cervid genetics and CWD is of increasing importance, especially given the growing interest in leveraging genetics that delay disease onset despite not preventing infection.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"199-205"},"PeriodicalIF":1.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142290156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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