Identification and molecular characterization of spp. from notoedric mange cases in four species of mammals from Florida, USA.

The objective of this study was to characterize from Florida, USA and to determine if rabbits and squirrels share the same species. From July 2022-November 2024, 19 suspected mange (i.e.

Clade 2.3.4.4b Highly Pathogenic Avian Influenza H5N1 Pathology in a Common Shorebird Species (Sanderling; ) in Virginia, USA.

Anseriformes (waterfowl) and Charadriiformes (shorebirds) are well-recognized natural reservoirs of low pathogenic (LP) influenza A viruses (IAVs). Historically, LP IAVs circulate among healthy individuals during seasonal, and often transcontinental, migrations. However, following the introduction of clade 2.

Correction: Anticoagulant rodenticide exposure and toxicosis in bald eagles (Haliaeetus leucocephalus) and golden eagles (Aquila chrysaetos) in the United States.

[This corrects the article DOI: 10.1371/journal.pone.

Outbreaks of Highly Pathogenic H5N1 Influenza A Virus infection in Black Vultures (Coragyps atratus), USA, 2022.

Mortalities in Black Vultures (Coragyps atratus) caused by A/goose/Guangdong/1/1996 2.3.4.

Fatal toxoplasmosis in a wild snowshoe hare (Lepus americanus) and eastern gray squirrel (Sciurus carolinensis) from the eastern United States.

Toxoplasmosis is a parasitic disease that exemplifies the One Health interface due to its global distribution and diversity of hosts in which it can infect and potentially cause disease. While T. gondii, the causative agent of toxoplasmosis, has been well-described in many wildlife taxa, including wild and domestic birds and mammals, there is limited published research on clinical disease in wild lagomorphs and rodents.

Canine distemper virus phylogenetic structure and ecological correlates of infection in mesocarnivores across anthropogenic land use gradients.

Unlabelled: Anthropogenic land use impacts infectious diseases at the wildlife-domestic-human interface by changing host spatial distribution, behavior, density, and population dynamics. Canine distemper virus (CDV) is a significant cause of morbidity and mortality in many wild and domestic animals. Given the propensity of CDV to infect synanthropic mesocarnivores, it is important to investigate host and environmental factors affecting mesocarnivore CDV infection.

Living in the city: Angiostrongylus cantonensis is a novel threat to an urban population of Florida burrowing owls (Athene cunicularia floridana) in south Florida.

Background: Angiostrongylus cantonensis, the rat lungworm, is a metastrongyloid parasite that uses rodents as definitive hosts, mollusks as intermediate hosts, and a wide range of invertebrate and vertebrate species as paratenic hosts. Although this parasite poses a significant public health concern in many regions of the world, it can also cause disease in numerous domestic and wildlife aberrant host species. When parasite larvae are ingested by one of these aberrant hosts, larval migration in the central nervous system causes extensive damage, resulting in spinal cord and/or brain damage and inflammation, leading to potentially fatal neurological disease.

Detection of Zoonotic Arboviruses in Ruffed Grouse () in the Upper Midwest, USA, 2018-2022.

Arthropod-borne viruses (arboviruses) are a taxonomically varied group of viruses that affect the health of many avian species, including the ruffed grouse (), a popular upland game bird whose numbers are in decline in portions of its range. Hunter-harvested ruffed grouse tissue samples were tested for arboviruses during the 2018-2022 hunting seasons in Michigan, Minnesota, and Wisconsin, USA. A low percentage of harvested ruffed grouse were infected with West Nile virus (8/1892; 0.

Hypertrophic osteopathy in 4 white-tailed deer, with a literature review.

Hypertrophic osteopathy (HO) is a condition in which periosteal bone forms along long bone diaphyses and metaphyses. Lesions generally affect all 4 limbs, and often involve the distal portions. The pathogenesis is incompletely understood, and many, but not all, cases are associated with concurrent neoplasia or space-occupying masses.

Aspergillosis in 41 wild bird species in the eastern United States: a 22-year retrospective review.

Aspergillosis is the most commonly and widely reported fungal infection in birds. Disease development is often secondary to stressors that cause immunocompromise, and it is typically regarded as a disease of captivity. We retrospectively evaluated data from 133 birds diagnosed with aspergillosis at the Southeastern Cooperative Wildlife Disease Study from 2001-2023 to assess diversity and relative frequency across avian taxa, gross and histologic lesion patterns, and comorbidities.

Generalized knemidokoptic mange (Micnemidocoptes sp.) in a bald eagle (Haliaeetus leucocephalus) from Arkansas, USA.

This report describes a case of generalized knemidokoptic mange caused by Micnemidocoptes sp. in a bald eagle (Haliaeetus leucocephalus). In June 2024, an adult male eagle from Polk County, Arkansas, presented with severe skin disease and in a moribund state.

An Enigmatic Wild Passerine Mortality Event in the Eastern United States.

The ability to rapidly respond to wildlife health events is essential. However, such events are often unpredictable, especially with anthropogenic disturbances and climate-related environmental changes driving unforeseen threats. Many events also are short-lived and go undocumented, making it difficult to draw on lessons learned from past investigations.

DIAGNOSTIC INVESTIGATION OF AMERICAN ROBINS () WITH FATAL ETHYLENE GLYCOL TOXICOSIS AND CONCURRENT SPP. INFECTION WITH RETROSPECTIVE REVIEW OF 44 YEARS OF DIAGNOSTIC DATA.

We describe a mortality event involving at least 44 adult American robins () that were found dead on the morning of February 25, 2023 in a residential backyard in Natchitoches Parish, Louisiana. Five carcasses were submitted for diagnostic evaluation. All five robins were in good nutritional and feather condition with no external indicators of injury or illness.

Sand Enteropathy in a Free-Ranging Brown Pelican (Pelecanus occidentalis) from Florida, USA.

A subadult Brown Pelican (Pelecanus occidentalis) was found dead near a fishing pier in Florida, USA. Necropsy revealed abundant sand accumulation throughout the intestines. Fibrinous coelomitis with isolation of mixed bacteria, including Enterobacter cloacae complex, suggests secondary intestinal compromise.

Case report: Disseminated larval trematodiasis caused by Clinostomum marginatum in a green tree frog (Hyla cinerea).

Clinostomum spp. are common parasites of piscivorous birds. Metacercaria are typically observed in the muscles or just under the skin of fish and rarely amphibians.

Causes of morbidity and mortality in wild cottontail rabbits in the eastern United States, 2013-2022.

Interest in causes of mortality of free-ranging, native North American lagomorphs has grown with the emergence of rabbit hemorrhagic disease virus 2 (RHDV2). Over the years 2013-2022, the Southeastern Cooperative Wildlife Disease Study received 119 spp. case submissions from the central and eastern United States, comprising 147 rabbits.

Surveillance for Selected Pathogens and Parasites of Northern Bobwhite (Colinus virginianus) from Western Oklahoma, USA, 2018-20.

The Northern Bobwhite (Colinus virginianus) has been undergoing a range-wide population decline. Potential causes for declines across its historic range have been investigated for decades and include habitat loss and fragmentation and a variety of parasitic and infectious diseases. Although there have been studies on bobwhite ecology in Oklahoma, USA, relatively little is known about parasites and pathogens in the region.