Skip to main content
U.S. flag

An official website of the United States government

Publications

View citations of publications by National Wildlife Health Center scientists since our founding in 1975.  Access to full-text is provided where possible.

Filter Total Items: 1602

Comparison of community practitioner and clinical educator expectations of veterinary graduates

One goal of veterinary curricular development and revision is to ensure graduating veterinarians meet entry-level competencies to perform successfully in their community. Most curricula are developed by clinical educators in a university setting; therefore, we must determine whether clinical educators can predict community practitioner expectations. This article evaluates practitioners’ expectatio
Authors
Amy Nichelason, Nathan Roy Bollig, Tom Bach, Molly Harris, Peggy Schmidt

Experimental infection of Mexican free-tailed bats (Tadarida brasiliensis) with SARS-CoV-2

The severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) virus is thought to have originated in wild bats from Asia, and as the resulting pandemic continues into its third year, concerns have been raised that the virus will expand its host range and infect North American wildlife species, including bats. Mexican free-tailed bats (Tadarida brasiliensis) live in large colonies in the souther
Authors
Jeffrey S. Hall, Erik K. Hofmeister, Hon S. Ip, Sean Nashold, Ariel Elizabeth Leon, Carly Marie Malave, Elizabeth Falendysz, Tonie E. Rocke, M. Carossino, U. Balasuriya, Susan Knowles

Epistylis spp. infestation in two species of mud turtles (Kinosternon spp.) in the American Southwest

The protistan genus Epistylis contains freshwater colonial species that attach to aquatic organisms in an epibiotic or parasitic relationship. They are known to attach to the epidermis and shells of aquatic turtles, but have not been reported to cause heavy infestations or morbidity in turtles. We documented heavy infestations of Epistylis spp. in several populations of Sonoran mud turtles (Kinost
Authors
Audrey K. Owens, Jennifer A. Smith, Rebecca A. Cole, Jeffrey M. Lorch, Daniel A. Grear

Trace elements in blood of sea ducks from Dutch Harbor and Izembek Lagoon, Alaska

In 2001, we collected whole blood from sea ducks (Steller’s eider Polysticta stelleri, harlequin duck Histrionicus histrionicus, black scoter Melanitta nigra, and long-tailed duck Clangula hyemalis) wintering at Dutch Harbor, Alaska, and from Steller’s eiders molting at Izembek Lagoon on the Alaska Peninsula. Blood samples were analyzed for 19 trace elements, of which 17 were detected in one or mo
Authors
J. Christian Franson, Tuula E. Hollmen, Paul L. Flint, Angela C. Matz

Partnering in search of answers: Seabird die-offs in the Bering and Chukchi Seas

Prior to 2015, seabird die-offs in Alaskan waters were rare; they typically occurred in mid-winter, linked to epizootic disease events or above-average ocean temperatures associated with strong El Nino-Southern Oscillation events (Bodenstein et al. 2015, Jones et al. 2019, Romano et al. 2020). Since 2015, the U.S. Fish and Wildlife Service (USFWS) has monitored mortality events that have become an
Authors
Robb A. S. Kaler, Gay Sheffield, S Backensto, Jackie Lindsey, T. Jones, J. Parrish, B Ahmasuk, Barbara Bodenstein, Robert J. Dusek, Caroline R. Van Hemert, Matthew M. Smith, P Schwalenberg

Invasive corallimorpharians at Palmyra Atoll National Wildlife Refuge are no match for lye and heat

Invasive marine species are well documented but options to manage them are limited. At Palmyra Atoll National Wildlife Refuge (Central North Pacific), native invasive corallimorpharians, Rhodactis howesii, have smothered live native corals since 2007. Laboratory and field trials were conducted evaluating two control methods to remove R. howesii overgrowing the benthos at Palmyra Atoll (Palmyra): 1
Authors
Thierry M. Work, Renee Breeden, Robert Rameyer, Vernon Born, Tim Clark, Jeremy Rainal, Chris Gillies, Julia Rose, Alex Wegmann, Stefan Kropidlowski

Review of harmful algal blooms effects on birds with implications for avian wildlife in the Chesapeake Bay region

The Chesapeake Bay, along the mid-Atlantic coast of North America, is the largest estuary in the United States and provides critical habitat for wildlife. In contrast to point and non-point source release of pesticides, metals, and industrial, personal care and household use chemicals on biota in this watershed, there has only been scant attention to potential exposure and effects of algal toxins
Authors
Barnett A. Rattner, Catherine E. Wazniak, Julia S. Lankton, Peter C. McGowan, Serguei Vyacheslavovich Drovetski, Todd A. Egerton

Ophidiomycosis is related to seasonal patterns of reproduction, ecdysis, and thermoregulatory behavior in a free-living snake species

Informed and effective management of emerging infectious diseases can be improved by a clear understanding of host–pathogen–environment interactions. Impacts of the seasonal environment on pathogen dynamics and host responses are poorly described in most reptile host–fungal pathogen systems. Here, we describe seasonal patterns of ophidiomycosis, a disease caused by the fungus Ophidiomyces ophidiic
Authors
C. M. Lind, J. Agugliaro, Jeffrey M. Lorch, T. M. Farrell

Global dissemination of Influenza A virus is driven by wild bird migration through arctic and subarctic zones

Influenza A viruses (IAV) circulate endemically among many wild aquatic bird populations that seasonally migrate between wintering grounds in southern latitudes to breeding ranges along the perimeter of the circumpolar arctic. Arctic and subarctic zones are hypothesized to serve as ecologic drivers of the intercontinental movement and reassortment of IAVs due to high densities of disparate populat
Authors
Jonathan D. Jr. Gass, Robert J. Dusek, Jeffrey S. Hall, Gunnar Thor Hallgrimsson, Halldór Pálmar Halldórsson, Solvi Runar Vignisson, Sunna Bjork Ragnarsdottir, Jón Einar Jónsson, Scott Krauss, Wong. Sook-San, Xiu-Feng Wan, Sadia Akter, Srinand Sreevatsan, Nidia S. Trovão, Felicia B. Nutter, Jonathan A. Runstadler, Nichola J. Hill

Advances in coral immunity ‘omics in response to disease outbreaks

Coral disease has progressively become one of the most pressing issues affecting coral reef survival. In the last 50 years, several reefs throughout the Caribbean have been severely impacted by increased frequency and intensity of disease outbreaks leading to coral death. A recent example of this is stony coral tissue loss disease which has quickly spread throughout the Caribbean, devastating cora
Authors
Nikki Traylor-Knowles, Andrew C. Baker, Kelsey M. Beavers, Neha Garg, Jeffrey R. Guyon, Aine C. Hawthorn, Nicholas J. MacKnight, Mónica Medina, Laura D. Mydlarz, Esther C. Peters, Julia Marie Stewart, Michael S. Studivan, Joshua D. Voss

Immunogenicity, safety, and anti-viral efficacy of a subunit SARS-CoV-2 vaccine candidate in captive black-footed ferrets (Mustela nigripes) and their susceptibility to viral challenge

A preliminary vaccination trial against the emergent pathogen, SARS-CoV-2, was completed in captive black-footed ferrets (Mustela nigripes; BFF) to assess safety, immunogenicity, and anti-viral efficacy. Vaccination and boosting of 15 BFF with purified SARS-CoV-2 S1 subunit protein produced a nearly 150-fold increase in mean antibody titers compared to pre-vaccination titers. Serum antibody respon
Authors
Ariel Elizabeth Leon, Della Garelle, Airn Hartwig, Elizabeth Falendysz, Hon S. Ip, Julia S. Lankton, Tyler Tretten, Terry Spraker, Richard Bowen, Tonie E. Rocke