Kendall L Bancroft, Connor J Meyer, Emily J Jenkins, Paul C Cross, Randy W DeYoung, Aaron M Foley, Miranda L Hopper, Kevin T Lovasik, Landon R Schofield, Bryan D Spencer, Michael J Cherry, Alynn M Martin
{"title":"Toxoplasma gondii: Challenges and Perspectives in Interpreting Longitudinal Seroprevalence Data for a Chronic Parasitic Infection.","authors":"Kendall L Bancroft, Connor J Meyer, Emily J Jenkins, Paul C Cross, Randy W DeYoung, Aaron M Foley, Miranda L Hopper, Kevin T Lovasik, Landon R Schofield, Bryan D Spencer, Michael J Cherry, Alynn M Martin","doi":"10.7589/JWD-D-25-00216","DOIUrl":"10.7589/JWD-D-25-00216","url":null,"abstract":"<p><p>Toxoplasma gondii-the causative agent of toxoplasmosis-is a zoonotic pathogen of warm-blooded hosts. Infection causes mild-to-severe symptoms, including lethargy, fever, muscle pain, abortion, ocular disease, and encephalitis. Toxoplasma affects many vertebrate species, although felids are the only known definitive hosts. Seroprevalence in wildlife is often assessed using cross-sectional data, but few studies have tracked individual-level infections through time. We present a 4-yr dataset from white-tailed deer (Odocoileus virginianus) with repeated sampling of individuals that highlights challenges associated with assigning serostatus to individuals. Using a modified agglutination test, we observed seroconversion from seronegative to seropositive within individuals, as expected. Although toxoplasmosis is known to be a chronic disease, we also found reversion from seropositive to seronegative. Accurate assignment of serostatus is necessary for evaluating effects of infection on behavioral and physiologic outcomes. However, longitudinal data from individuals whose titers oscillate around the positive threshold present novel challenges. Therefore, we discuss the implications for assigning serostatus for chronic toxoplasmosis infection for three proposed approaches: 1) ever positive, always positive; 2) negative until positive and then always positive; and 3) status by sampling period. Clarifying which approach is used to assign serostatus when analyzing longitudinal T. gondii data may enable more meaningful comparisons across systems and studies.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"708-714"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147982307","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}
Nathan L Galloway, Glen A Sargeant, Jenny G Powers, Gregory M Schroeder, Terry Spraker, Margaret A Wild
{"title":"Testing Multiple Tissues Improves Performance of Diagnostic Assays for Chronic Wasting Disease in Elk (Cervus canadensis).","authors":"Nathan L Galloway, Glen A Sargeant, Jenny G Powers, Gregory M Schroeder, Terry Spraker, Margaret A Wild","doi":"10.7589/JWD-D-25-00164","DOIUrl":"10.7589/JWD-D-25-00164","url":null,"abstract":"<p><p>Effective wildlife disease management and research rely on trustworthy disease diagnostics. For chronic wasting disease (CWD), immunohistochemistry (IHC) is recognized as the gold standard, and ELISA is a reliable high-throughput screening method validated for use on obex and retropharyngeal lymph node (RPLN) tissues. However, diagnostic performance of the assays when used on tissues from elk (Cervus canadensis) varies, particularly under varying CWD population prevalence. We used hierarchical Bayesian modeling to predict sensitivity and specificity of ELISA on obex and RPLN and IHC on obex, RPLN, and rectoanal mucosa-associated lymphoid tissue (RAMALT) from elk. We detected CWD prion in at least one tissue from 46/283 individuals tested postmortem between 2016 and 2020. Specificity of ELISA was nearly perfect, providing strong confidence in CWD-detected results. Predicted mean test sensitivity was greater for ELISA than for IHC and slightly greater for RPLN tissue than for obex. The most sensitive individual test was ELISA RPLN, whereas the most reliable CWD diagnosis was achieved by parallel testing of both the obex and RPLN by ELISA, with serial confirmation by IHC. Although RAMALT can be used for antemortem testing, its low sensitivity makes negative results unreliable for proving an animal is disease free. When positive and negative predictive values of these methods were evaluated, we found the reliability of diagnostic results varied widely within the observed range of disease prevalence, and poor reliability was exaggerated by low diagnostic performance. Test-negative results are more likely to be true early in disease invasion, whereas the risk of a false-negative result grows with increasing disease prevalence in the sampled population. Wildlife managers should consider both the objectives and the stage of disease invasion when interpreting diagnostic test results.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"644-654"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147856361","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}
Rachel M Goodman, R Paul Mahaffy, Henry R Carman, Nathan S Cabrera, Gaëlle Blanvillain
{"title":"Surveillance of Ophidiomyces ophidiicola in Snakes, Primarily Eastern Wormsnakes (Carphophis amoenus), in Central Virginia, USA, Based on Swab and Tissue Sampling.","authors":"Rachel M Goodman, R Paul Mahaffy, Henry R Carman, Nathan S Cabrera, Gaëlle Blanvillain","doi":"10.7589/JWD-D-25-00156","DOIUrl":"10.7589/JWD-D-25-00156","url":null,"abstract":"<p><p>Ophidiomycosis, or snake fungal disease, caused by the pathogen Ophidiomyces ophidiicola, poses a growing threat to wild snake populations in North America. We surveyed snake populations in central Virginia, USA in 2021-22; no clinical signs of ophidiomycosis had been observed in a survey in 2013-14. Across 82 individuals representing seven species, 16% tested O. ophidiicola-positive, including 17% of eastern wormsnakes (Carphophis amoenus), the most frequently encountered species. All O. ophidiicola-positive snakes exhibited skin lesions or abnormalities at the time of capture; no subclinical individuals tested positive. Among eastern wormsnakes, O. ophidiicola-positive individuals were significantly larger in mass and length but did not differ in body condition compared to O. ophidiicola-negative individuals, suggesting age-related infection accumulation. Swabs preserved in RNAlater, swabs preserved in sterile water, and tissue samples from tail tips yielded O. ophidiicola-positive rates of 9%, 5%, and 7%, respectively. The number of O. ophidiicola-positive snakes was too small to formally test for differences between sampling techniques; however, this study supports the use of both swab samples and tissues. We tentatively suggest emergence of O. ophidiicola in our study site sometime between 2014 and 2021, or environmental changes during this period that altered pathogen load and/or host immune status. Our results provide the most extensive dataset to date on O. ophidiicola prevalence in C. amoenus and underscore the need for continued monitoring in fossorial species.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"690-695"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147699219","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}
Alexandria F Bullen, James W Macgregor, Rebecca Donaldson, Kristin Warren
{"title":"Detection of Antimicrobial Resistance in Streptococci from a Wild Tasmanian Platypus (Ornithorhynchus anatinus): A One Health Challenge.","authors":"Alexandria F Bullen, James W Macgregor, Rebecca Donaldson, Kristin Warren","doi":"10.7589/JWD-D-25-00192","DOIUrl":"10.7589/JWD-D-25-00192","url":null,"abstract":"<p><p>This letter describes possible pathogen and antimicrobial resistance spillover from agricultural systems to wildlife through detection of zoonotic streptococci with resistance to a common veterinary antibiotic in a wild Tasmanian platypus (Ornithorhynchus anatinus). We propose platypus as a potential One Health sentinel species for surveillance in freshwater ecosystems.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"738-741"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147930797","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}
Treana C Mayer, Terry Spraker, Paul Roghair, Chadwick P Lehman, Eddie Childers, Nathan L Galloway, Laurie Baeten
{"title":"Domestic Spillover of Mycoplasma ovipneumoniae with Concurrent Bluetongue Virus Implicated in Bighorn Sheep (Ovis canadensis) Epizootic Pneumonia Outbreak in Badlands, South Dakota, USA.","authors":"Treana C Mayer, Terry Spraker, Paul Roghair, Chadwick P Lehman, Eddie Childers, Nathan L Galloway, Laurie Baeten","doi":"10.7589/JWD-D-25-00093","DOIUrl":"10.7589/JWD-D-25-00093","url":null,"abstract":"<p><p>Respiratory disease remains an important threat to bighorn sheep (BHS; Ovis canadensis), complicated by fragmented populations and environmental stressors. Significantly, BHS epizootic pneumonia can lead to all-age die-offs and is population limiting. We describe an interagency investigation of a die-off within a BHS herd in the Badlands region of South Dakota, USA from 2021-22. Minimum survey counts began declining 2 mo following a reported domestic sheep (Ovis aries) and BHS interaction and dropped from 262 to 56 BHS over 9 mo. Postmortem testing included histopathology, bacterial culture, molecular testing, and partial microbial sequencing in 13 affected BHS. Data from neighboring domestic small ruminants and historical BHS data were compared to outbreak observations. Histopathology revealed moderate to severe bronchopneumonia in many cases. Half of animals examined harbored mild to heavy lungworm burdens (5/10). Pneumonic tissue culture yielded Trueperella pyogenes (10/11), Bibersteinia trehelosi (5/11), and no live Mycoplasma spp. (0/11). Conversely, real-time PCR detected widespread Mycoplasma ovipneumoniae (12/13) for the first time in this herd, with co-occurring bluetongue virus (BTV, 4/10). Two unique M. ovipneumoniae strains were found in BHS, one directly related to nearby domestic sheep isolates. Severe epizootic pneumonia was preceded by multi-strain M. ovipneumoniae spillover, with T. pyogenes causing suppurative pneumonia. High BHS density, a moderate-severe drought, and BTV transmission compounded disease susceptibility and mortality in this herd. Strengthened collaborations are necessary to manage BHS facing multiple coinciding health threats.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"655-665"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147930861","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}
{"title":"Spatial Distribution of Lymphoproliferative Disease Virus in Wild Turkeys (Meleagris gallopavo) in Iowa, USA.","authors":"Kelsey C Smith, Julie A Blanchong","doi":"10.7589/JWD-D-25-00133","DOIUrl":"10.7589/JWD-D-25-00133","url":null,"abstract":"<p><p>Wild Turkeys (Meleagris gallopavo ssp.) are a popular game bird in North America. Populations in many states in the USA have been declining due to unknown causes. Concern about potential impacts of disease on Wild Turkeys has been increasing. Lymphoproliferative disease virus (LPDV) is an avian retrovirus initially identified in domestic turkeys in Europe and Israel that often presented as lymphoid tumors and was associated with high mortality rates. In 2009 LPDV was first reported in the USA, and it has been reported in numerous USA states and Canadian provinces, though little is known about its effects on Wild Turkey populations. Our objective was to identify prevalence and spatial patterns of LPDV infection in Wild Turkeys in Iowa, USA. We tested bone marrow from 912 Wild Turkeys that were hunter-harvested (n=907), road-killed (n=3), or submitted for necropsy (n=2) for LPDV. Samples were collected between 2019 and 2021, but comprised primarily adult males from the 2020 spring harvest. We found that LPDV was distributed across Iowa, with an estimated statewide prevalence of 42.9%. Cluster analysis using Kulldorff's spatial scan statistic identified two clusters of higher prevalence (hotspots) and two clusters of lower prevalence (coldspots) than expected. The Iowa landscape is dominated by agriculture (81%) with a smaller amount of forest (7%). The two hotspots were located within some of the more heavily forested portions of the state (16.6% and 7.9% forest), while the coldspots had smaller amounts of forest (3.8% and 0.8%). Our results provide the first information on the prevalence and distribution of LPDV in Iowa and could be used to identify areas to prioritize continued surveillance as well as conduct research on the effects of LPDV on Wild Turkey populations.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"582-591"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147941711","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}
David A Eads, Dean E Biggins, Dustin H Long, James R Self, Kenneth L Gage, Michael F Antolin
{"title":"Effects of Edaphic Factors on Plague Vector Fleas Parasitizing Black-Tailed Prairie Dogs.","authors":"David A Eads, Dean E Biggins, Dustin H Long, James R Self, Kenneth L Gage, Michael F Antolin","doi":"10.7589/JWD-D-26-00002","DOIUrl":"10.7589/JWD-D-26-00002","url":null,"abstract":"<p><p>Plague is a zoonotic disease of mammals caused by the bacterium Yersinia pestis. Because plague is primarily transmitted by fleas (Siphonaptera), rates of plague transmission are expected to increase with flea abundance. Edaphic factors can influence the abundance and dispersion of fleas, suggesting that soils may play important roles in plague ecology. From June to August 2010-12, in northern New Mexico, USA, we investigated the effects of soil texture, soil moisture, and soil water-holding capacity on the abundance of adult fleas parasitizing colonial, burrowing black-tailed prairie dogs (Cynomys ludovicianus, BTPDs). We sampled BTPDs 1,741 times on 20 sampling plots distributed among 13 BTPD colonies, detecting 9,541 adult fleas on BTPDs. Fleas were most abundant on BTPDs in areas with coarse surface soils, and in areas with moderately textured subsurface soils at the average depth of BTPD nest chambers. Coarse surface soils may facilitate water percolation to BTPD nests, where the moisture could generate humid microclimates that benefit desiccation-prone fleas. Moderately textured subsurface soils, of intermediate water-holding capacity, can store water, which may increase burrow humidity. Moreover, moderately textured subsurface soils in BTPD nests may increase survival of flea larvae and pupae, facilitating their development to adulthood. That said, excessive moisture and sodden soils can favor fungi and mites, some of which are lethal to fleas. In our study, fleas were most abundant in areas with subsurface soils of intermediate moisture content. Our findings complement an accumulating number of studies, indicating that edaphic factors play important roles in flea and plague ecology.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"558-569"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147941524","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}
Nicole Lewis, Roji Raut, Ashok Chaudhary, Prajwol Manandhar, Smita Shrestha, Rajesh Rajbhandari, Suresh Nepali, Amir Sadaula, Phurba Tenzing Lama, Bishwo Shrestha, Jan E Janecka, Dibesh Karmacharya
{"title":"Piloting Noninvasive Pathogen Assessment and Perceptions at the Snow Leopard (Panthera uncia)-Domestic Animal-Human Interface in Nepal.","authors":"Nicole Lewis, Roji Raut, Ashok Chaudhary, Prajwol Manandhar, Smita Shrestha, Rajesh Rajbhandari, Suresh Nepali, Amir Sadaula, Phurba Tenzing Lama, Bishwo Shrestha, Jan E Janecka, Dibesh Karmacharya","doi":"10.7589/JWD-D-25-00176","DOIUrl":"10.7589/JWD-D-25-00176","url":null,"abstract":"<p><p>Little is known about pathogens circulating in free-living snow leopards (Panthera uncia) and their implications for both species conservation and local communities in Nepal. The close proximity between snow leopards and domestic animals increases the risk of pathogen spillover and represents a critical knowledge gap that has yet to be explored in Nepal. We conducted a pilot noninvasive health assessment of snow leopards in Nepal by screening for the presence of selected pathogens in snow leopards and livestock inhabiting the same area and having local community members complete a knowledge, attitude, and practice questionnaire focused on the health of domestic species and opinions on snow leopards. We collected two different sets of fecal samples of domestic animals and putative snow leopards in the Mustang region of Nepal in December 2024. Six scat samples were confirmed to be from snow leopards by using a species-specific PCR. We detected Leptospira spp. in a domesticated horse sample and Escherichia coli and several intestinal parasites, including Eimeria spp., in several livestock species. This study represents a step toward understanding potential pathogen spillover risks between snow leopards, domestic animals, and humans.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"696-701"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147839764","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}
Elisa Castaldo, Francesco Buono, Stefano Scarcelli, Nicola D'Alessio, Alessandro Fioretti, Valerio Toscano, Fabrizia Veronesi, Camilla Sangiovanni, Esterina De Carlo, Harold Salant, Giovanni Sgroi, Vincenzo Veneziano
{"title":"Helminth Fauna of Wild Boars (Sus scrofa): A Coprological Survey from Southern Italy.","authors":"Elisa Castaldo, Francesco Buono, Stefano Scarcelli, Nicola D'Alessio, Alessandro Fioretti, Valerio Toscano, Fabrizia Veronesi, Camilla Sangiovanni, Esterina De Carlo, Harold Salant, Giovanni Sgroi, Vincenzo Veneziano","doi":"10.7589/JWD-D-25-00137","DOIUrl":"10.7589/JWD-D-25-00137","url":null,"abstract":"<p><p>Wild boar (Sus scrofa) populations have increased worldwide, causing sanitary and environmental concerns. These ungulates can harbor a wide range of pathogens that should be carefully monitored due to the zoonotic potential and risk of transmission to domestic pigs. This study aimed to assess the prevalence and distribution of helminth infections among wild boars in southern Italy and to explore associated risk factors for infections. A total of 369 wild boars were culled during one hunting season in four hunting districts in the Campania region, and individual fecal egg counts were performed by Mini-FLOTAC technique. Gastrointestinal strongyles (GIS) were the most common parasites detected (65.9%), followed by Metastrongylus spp. (48.8%), Ascaris suum (9.2%), Strongyloides ransomi and Trichuris suis (4.6% each), Capillaria (syn. Eucoleus) spp. (4.3%), Dicrocoelium dendriticum (1.6%), and Physocephalus sexalatus and Ascarops strongylina (0.5% each). Statistically significant differences (P<0.05) were found for GIS, Metastrongylus spp., and A. suum infections by boar hunting district, and for GIS and Metastrongylus spp. by age class. These results confirm wild boar competence to host diverse helminth species and their potential role as a reservoir for domestic pigs, primarily when bred in extensive production systems. The parasitologic monitoring of wild boars is a key step toward a deeper understanding of the relationship between wild and domestic pigs, safeguarding the health of farm animals.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"675-682"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147839779","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}
Eliza Baker, John M Winter, Michael Neri, Charles Rizzo, Chris Anchor, Laura Adamovicz, Matthew C Allender
{"title":"Gammaherpesvirus Detection in Apparently Healthy White-tailed Deer (Odocoileus virginianus) from Illinois, USA.","authors":"Eliza Baker, John M Winter, Michael Neri, Charles Rizzo, Chris Anchor, Laura Adamovicz, Matthew C Allender","doi":"10.7589/JWD-D-25-00212","DOIUrl":"10.7589/JWD-D-25-00212","url":null,"abstract":"<p><p>Numerous gammaherpesviruses can infect cervids, including those that cause malignant catarrhal fever, a lymphoproliferative disease of artiodactyls. Less is known about unclassified gammaherpesviruses in cervids, although they appear to be nonpathogenic in their adapted hosts. Adenoviruses can also cause disease in cervids, characterized outbreaks of localized or systemic vasculitis, especially in juveniles. We tested 31 samples from 24 white-tailed deer (Odocoileus virginianus) captured in Cook County, Illinois, USA for herpesviruses and adenoviruses via consensus PCR of combined nasal-rectal swabs. Over one-third (35%, 11/31) of samples, constituting 42% (10/24) of individual deer, were PCR-positive for a herpesvirus most similar to an unclassified gammaherpesvirus previously found in mule deer (Odocoileus hemionus) in Washington, USA and Saskatchewan, Canada. No deer tested positive for adenoviruses. All deer were apparently healthy on physical examination. Gammaherpesvirus detection is common in white-tailed deer in Cook County and does not appear to be associated with clinically apparent disease. However, the impact of this virus on white-tailed deer fitness or on non-adapted hosts is unknown.</p>","PeriodicalId":17602,"journal":{"name":"Journal of Wildlife Diseases","volume":" ","pages":"702-707"},"PeriodicalIF":1.3,"publicationDate":"2026-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147930856","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}