Journal of Wildlife Diseases最新文献_第3页

Mass Mortality in Migrating American Robins (Turdus migratorius) in Virginia, USA: Data Beyond a Diagnosis. 美国维吉尼亚州迁徙美洲知更鸟（Turdus migratorius）的大量死亡率：诊断之外的数据。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-05-08 DOI: 10.7589/JWD-D-24-00148

Karen E Powers, E Haley Olsen-Hodges, Sara O'Brien, Stephen A Smith, Jamie K Lau, Liliana G Dailey, Bianca A Plowman, Tessa K Harmon, Robert R Sheehy, Matthew T Close, Katie E Wheeler

{"title":"Mass Mortality in Migrating American Robins (Turdus migratorius) in Virginia, USA: Data Beyond a Diagnosis.","authors":"Karen E Powers, E Haley Olsen-Hodges, Sara O'Brien, Stephen A Smith, Jamie K Lau, Liliana G Dailey, Bianca A Plowman, Tessa K Harmon, Robert R Sheehy, Matthew T Close, Katie E Wheeler","doi":"10.7589/JWD-D-24-00148","DOIUrl":"https://doi.org/10.7589/JWD-D-24-00148","url":null,"abstract":"While investigating an American Robin (Turdus migratorius) mass mortality event in February-March 2022 in southwestern Virginia (USA), we collected parasites, investigated gizzard contents, and described flock demographics. We recovered ectoparasites (ticks, mites, lice) from 32/83 (38.7%) individuals. Ten of 83 (12.0%) American Robins presented with scaly mites (Knemidocoptes) and varying levels of disfiguring keratin growth on their legs. We report that 57.1% of individuals harbored endoparasites and 90% of intact ventriculi contained seeds, pulp, or husks from American holly (Ilex opaca) berries. Although we were unable to test the berries directly, these findings lend credence to the conclusion that these birds died from consuming fermented holly berries. This mortality event provided an unusually large sample no longer collected systematically and provided baseline natural history data for a common migratory species. These data are valuable to researchers exploring changes in flock dynamics and parasite load due to contemporary stressors such as habitat and microhabitat modifications caused by anthropogenic impacts like climate change.","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144029737","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

Pansteatitis in Wild American Alligators (Alligator mississippiensis). 野生美洲短吻鳄（密西西比短吻鳄）的泛咽喉炎。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-05-02 DOI: 10.7589/JWD-D-24-00190

Miriam N Boucher, Justin M Stilwell, Marisa Tellez, Shane M Boylan, Thomas R Rainwater, Stefanie L Whitmire, James T Anderson

引用次数: 0

B Cell Lymphoma in an Adult Female Mule Deer (Odocoileus hemionus) from Wyoming, USA. 美国怀俄明州成年母骡鹿B细胞淋巴瘤的研究。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-05-02 DOI: 10.7589/JWD-D-25-00034

María J Forzán, Jessica Jennings-Gaines, Eric R Burrough, Samantha E Allen

引用次数: 0

Prevalence and Pathology Associated with Sarcocystis spp. in Raptors in Tennessee, USA. 美国田纳西州猛禽中肌囊虫病的患病率和病理学。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-05-02 DOI: 10.7589/JWD-D-24-00130

Eliza Baker, Lani Bower, Richard Gerhold, Debra Miller

{"title":"Prevalence and Pathology Associated with Sarcocystis spp. in Raptors in Tennessee, USA.","authors":"Eliza Baker, Lani Bower, Richard Gerhold, Debra Miller","doi":"10.7589/JWD-D-24-00130","DOIUrl":"https://doi.org/10.7589/JWD-D-24-00130","url":null,"abstract":"Raptors may serve as both intermediate and definitive hosts for Sarcocystis spp. Past research has documented fatal encephalitis in raptors caused by various Sarcocystis spp., whereas other surveys have found a high prevalence of tissue cysts without evidence of disease. Little is known about the prevalence of Sarcocystis in raptors in the eastern US. The aim of this study was to determine the occurrence of tissue cysts and histopathologic changes associated with Sarcocystis spp. infection in raptors in eastern Tennessee. Tissues of 33 raptors from Tennessee, USA, were assessed with histopathologic examination. Cysts consistent with Sarcocystis spp. were present in the heart, skeletal, or tracheal muscle of 11 (33%) raptors, without any associated inflammation. Tissues from histopathologic-positive raptors were then tested with PCR targeting of the 18S rRNA gene of Sarcocystis. Sequence analysis of PCR products revealed that six raptors had sequences most similar to Sarcocystis falcatula, and two had sequences most similar to Sarcocystis halieti. In addition, one S. falcatula-positive Bald Eagle (Haliaeetus leucocephalus) had lymphoplasmacytic meningoencephalitis and was positive via immunohistochemistry for eastern equine encephalitis virus. Our study supports findings in other geographic regions that raptors commonly serve as hosts for Sarcocystis spp. without evidence of associated disease.","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144008866","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

Mycoplamsa bovis Outbreak and Maintenance of Subclinical Infections in An Exposed Cohort of Juvenile American Bison (Bison bison). 暴露在美洲野牛幼崽群中的牛支原体爆发和亚临床感染的维持。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-04-30 DOI: 10.7589/JWD-D-24-00117

Danielle E Buttke, Katie Schwartz, Erin Schwalbe, Halcyon Killion, Kerry S Sondgeroth, Bryan S Kaplan, Jennifer L Malmberg

{"title":"Mycoplamsa bovis Outbreak and Maintenance of Subclinical Infections in An Exposed Cohort of Juvenile American Bison (Bison bison).","authors":"Danielle E Buttke, Katie Schwartz, Erin Schwalbe, Halcyon Killion, Kerry S Sondgeroth, Bryan S Kaplan, Jennifer L Malmberg","doi":"10.7589/JWD-D-24-00117","DOIUrl":"https://doi.org/10.7589/JWD-D-24-00117","url":null,"abstract":"The American bison (Bison bison) is an ecologically, economically, and culturally significant species that is exceptionally vulnerable to disease caused by Mycoplasma bovis. In contrast to livestock in which M. bovis is one of many infectious agents comprising the bovine respiratory disease complex, infection in bison is characterized by severe pneumonia and potential for systemic disease in the absence of coinfecting pathogens. In bison, morbidity and mortality are highest in adult cows, whereas calves and yearlings infrequently present with clinical disease. The infection dynamics of M. bovis in young bison exposed during an outbreak have not been fully characterized. Herein, we describe a severe outbreak of M. bovis in a closed, extensively managed herd from which we established a cohort of young bison for longitudinal observation, sampling, and testing. Our findings indicate that M. bovis can colonize the nasopharynx of calves and yearlings during an outbreak, often without causing apparent clinical signs. Although some animals cleared the infection during a 12-mo follow-up study, others remained PCR and culture positive, highlighting the potential for asymptomatic carriage in bison calves as a source of subsequent outbreaks. Using a paired swabbing approach, we show that sampling the superficial nasal cavity is adequate for detection of M. bovis during an outbreak. Over time, however, deep sampling of the nasopharynx is necessary to maximize detection of subclinical infections. Uncertainty in detection using PCR on nasal swab samples can complicate herd assessments and limit the ability to fully assess risk. This study emphasizes the difficulty of identifying chronic carriers following an outbreak and underscores the need for further research to inform M. bovis management and minimize risk in the sensitive and iconic American bison.","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144007300","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

Pasteurella multocida Infections in Yellow-eyed Penguins (Hoiho; Megadyptes antipodes) in Otago, New Zealand: Case Series of Mortalities due to Avian Cholera. 黄眼企鹅的多杀性巴氏杆菌感染新西兰奥塔哥：禽霍乱死亡病例系列。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-04-29 DOI: 10.7589/JWD-D-24-00174

Harry S Taylor, Jonathan Foxwell, Ruy Jauregui, Trudi Webster, Mark Eames, Peter Bennett, Hendrik Schultz, Jim Watts, Lisa Argilla, Kate McInnes, John O'Connell, Stuart Hunter

{"title":"Pasteurella multocida Infections in Yellow-eyed Penguins (Hoiho; Megadyptes antipodes) in Otago, New Zealand: Case Series of Mortalities due to Avian Cholera.","authors":"Harry S Taylor, Jonathan Foxwell, Ruy Jauregui, Trudi Webster, Mark Eames, Peter Bennett, Hendrik Schultz, Jim Watts, Lisa Argilla, Kate McInnes, John O'Connell, Stuart Hunter","doi":"10.7589/JWD-D-24-00174","DOIUrl":"https://doi.org/10.7589/JWD-D-24-00174","url":null,"abstract":"Yellow-eyed Penguins (Megadyptes antipodes; Hoiho) are a unique, nationally endangered, and declining species endemic to New Zealand. Between 28 April 2023 and 28 February 2024, histopathologic examination found that six Yellow-eyed Penguins died from septicemia. A Pasteurella sp. was cultured from all six cases and confirmed as Pasteurella multocida in three cases by either MALDI-TOF (n=2) or genome sequencing (n=1). One isolate was confirmed as P. multocida type A:L3 by molecular techniques and genome sequencing. Pasteurella multocida is the causative agent of avian cholera; thus, finding P. multocida confirmed avian cholera as the cause of these deaths. A source for the bacterial infections could not be identified in these cases. Although avian cholera has been previously reported in other penguin species, to our knowledge, these are the first reported cases of P. multocida in Yellow-eyed Penguins. Yellow-eyed Penguins do not nest in dense colonies, and direct contact between birds outside of breeding pairs is irregular, making this case series an unusual presentation for avian cholera. The loss of six individuals, including three of breeding age, will have a significant impact on the mainland Yellow-eyed Penguin population, and the potential for further losses to avian cholera cannot be discounted. This case series illustrates the benefits of multiagency collaboration in monitoring for, and investigation of, potentially new and emerging diseases in threatened species.","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971086","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

Infectious Diseases in European Brown Hares (Lepus europaeus) Found Dead or Moribund in the Netherlands. 在荷兰发现死亡或垂死的欧洲褐兔（Lepus europaeus）传染病。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-04-29 DOI: 10.7589/JWD-D-24-00116

Sara R Wijburg, Margriet G E Montizaan, Els M Broens, Andrea Gröne, Hein Sprong, Miriam Maas

{"title":"Infectious Diseases in European Brown Hares (Lepus europaeus) Found Dead or Moribund in the Netherlands.","authors":"Sara R Wijburg, Margriet G E Montizaan, Els M Broens, Andrea Gröne, Hein Sprong, Miriam Maas","doi":"10.7589/JWD-D-24-00116","DOIUrl":"https://doi.org/10.7589/JWD-D-24-00116","url":null,"abstract":"Information on pathogens, including zoonotic agents, in European brown hares (Lepus europaeus) in the Netherlands is lacking. In this paper, we provide an overview of the most common pathogens found in hares in the Netherlands. Specifically, we assessed whether land use and climatic factors influence the occurrence of a frequently detected pathogen in hares, that is, Yersinia spp., and determined whether there are changes in the occurrence of pathogens in hares between the periods 1966-77 and 2009-21. Postmortem examinations were available for 513 hares from 2009 to 2021 and for 757 hares from 1966 to 1977. Descriptive analysis was performed on these data, assessing hare metadata, pathology, reasons for submission, land use surrounding the location of recovery, and seasonality. A logistic mixed modeling approach was used to identify predictors for the presence of Yersinia spp. In both periods, hares were identified as competent hosts for several pathogens, including zoonotic agents. Yersinia spp. was the most frequently identified pathogen (recent period, 12.1%; historic period, 25.1%). Between 2009 and 2021, Yersinia spp. presence was positively associated with the proportion of agricultural land use and negatively associated with the mean daily minimum temperature. The results presented herein provide a better understanding of pathogens circulating in free-ranging hares in the Netherlands and are relevant to hare health and public health and for wildlife managers and future surveillance strategies. Furthermore, the results emphasize the inherent difficulties associated with retrospective analyses of these types of data.","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143989076","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

Moderate Neospora caninum Detection in Wild Dog Populations in Southeast Australia. 澳大利亚东南部野狗种群中中度犬新孢子虫的检测。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-04-28 DOI: 10.7589/JWD-D-24-00149

Eliza K Stott, Jose L Huaman, Teresa G Carvalho, Christina McCowan, Chloe Janice Fingland, Jade Frederick Hammer, Alana Websdale, Lee F Skerratt, Carlo Pacioni

{"title":"Moderate Neospora caninum Detection in Wild Dog Populations in Southeast Australia.","authors":"Eliza K Stott, Jose L Huaman, Teresa G Carvalho, Christina McCowan, Chloe Janice Fingland, Jade Frederick Hammer, Alana Websdale, Lee F Skerratt, Carlo Pacioni","doi":"10.7589/JWD-D-24-00149","DOIUrl":"https://doi.org/10.7589/JWD-D-24-00149","url":null,"abstract":"Neospora caninum: is an obligate intracellular protozoan parasite that causes hind-limb paralysis in dogs and abortions in cattle. Recurrent storms of abortions in cattle in Australia are estimated to cause an economic loss of AU$100 million each year, but the source of infection in cattle (i.e., via wild or domestic definitive hosts) remains to be established. We aimed to determine potential sources of horizontal transmission of N. caninum after recent evidence that wild dogs (Canis familiaris) shed N. caninum oocysts in Victoria, Australia. To determine infection levels among wild dogs, samples were collected from three sites in Victoria (n=52) in areas of high wild dog population density (Mansfield, Swifts Creek, and Tallangatta), and N. caninum detection was determined by PCR analysis of blood and duodenal samples. Based on the PCR assay of combined duodenal samples (flotation of duodenal content and just duodenal content), this study detected N. caninum in the fecal material of 11% of wild dogs in Mansfield and 21% of wild dogs in Swifts Creek. This study provides further insight into the possible role of wild dogs as a reservoir of N. caninum in Victoria.","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144010794","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

Diversity of Tick Species and Tick-borne Pathogens Hosted by Urban and Suburban European Hedgehogs (Erinaceus europaeus) in France. 法国城市和郊区欧洲刺猬（Erinaceus europaeus）宿主蜱类和蜱传病原体的多样性。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-04-15 DOI: 10.7589/JWD-D-24-00178

Isabelle Defosseux, Clotilde Rouxel, Clémence Galon, Valérie Poux, Pascal Arné, Cécile Le Barzic, Anne-Claire Lagrée, Nadia Haddad, Pierre Deshuillers, Sara Moutailler, Maud Marsot

{"title":"Diversity of Tick Species and Tick-borne Pathogens Hosted by Urban and Suburban European Hedgehogs (Erinaceus europaeus) in France.","authors":"Isabelle Defosseux, Clotilde Rouxel, Clémence Galon, Valérie Poux, Pascal Arné, Cécile Le Barzic, Anne-Claire Lagrée, Nadia Haddad, Pierre Deshuillers, Sara Moutailler, Maud Marsot","doi":"10.7589/JWD-D-24-00178","DOIUrl":"https://doi.org/10.7589/JWD-D-24-00178","url":null,"abstract":"Ticks transmit a variety of pathogens that affect both animal and human health, underscoring the importance of understanding diversity and transmission dynamics. The European hedgehog (Erinaceus europaeus) serves as a host for ticks such as Ixodes hexagonus and Ixodes ricinus, potentially playing a role in the enzootic cycle of tick-borne diseases. This study aimed to evaluate the use of hedgehogs as sentinels for monitoring tick-borne pathogens in urban and suburban areas. A total of 251 hedgehogs were involved in the study, conducted between 2019 and 2021, with 144 examined for ticks and 110 undergoing ear biopsies. Using real-time PCR, multiple pathogens were identified among the hedgehogs, including Borrelia afzelii, Rickettsia asembonensis, and Anaplasma phagocytophilum. Most (96%) ticks collected were I. hexagonus, primarily nymphs and adult females, confirming this species as the main infester of hedgehogs. Carcasses obtained from a wildlife animal hospital provided an accessible source of biological material for this study. The results indicated that hedgehogs could serve as sentinel hosts for the surveillance of Borrelia burgdorferi complex, Rickettsia spp., and A. phagocytophilum in urban and suburban environments. Further research is needed to explore the relationship among hedgehog population densities, tick infestation levels, and the prevalence of tick-borne pathogens. Such studies are essential to determine the contribution of hedgehogs to the enzootic transmission cycle of these pathogens and to evaluate the resultant risks to human health.","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144021170","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

Highly Pathogenic Avian Influenza in Northern Fulmars (Fulmarus glacialis) in the Netherlands. 荷兰北部冰川狐猴的高致病性禽流感。

IF 1.1 4区农林科学

Journal of Wildlife Diseases Pub Date : 2025-04-14 DOI: 10.7589/JWD-D-24-00176

Valentina Caliendo, Beatriz Bellido Martin, Ron A M Fouchier, Oanh Vuong, Judith M A van den Brand, Mardik Leopold, Susanne Kühn

引用次数: 0