Filters: Tags: histopathology (X) > partyWithName: National Wildlife Health Center (X)

Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Citation (1) Contacts Susan Knowles Julia S Lankton U.S. Geological Survey - ScienceBase Ecosystems Thierry M Work More... Categories Data (4) Tag Types Theme (4) Place (4) Harvest Set (4) USGS Scientific Topic Keyword (3) Tag Schemes None (4) Common geographic areas (2) ISO 19115 Topic Category (3) USGS Thesaurus (2) Marine Realms Information Bank (MRIB) keywords (1) View Results as: JSON ATOM CSV

Natural infections with Pigeon Paramyxovirus-1: Pathologic changes in Eurasian collared-doves (Streptopelia decaocto) and rock pigeons (Columba livia) in the USA: Data We reviewed pathological findings and to a lesser extent epidemiological data from 70 free-ranging columbiforms naturally infected with Pigeon paramyxovirus-1 (PPMV-1) from 25 different PPMV-1 mortality events in columbiforms in the USA. In a subset of 17 birds from 10 of the studied outbreaks, we carried out immunohistochemistry targeting PPMV-1 nucleoprotein to determine the tissue distribution of the virus. Categories: Data; Types: Citation; Tags: Arizona, Eurasian collared-dove, Kansas, Massachusetts, Mississippi, All tags... Montana, Nevada, New Mexico, Pennsylvania, Pigeon paramyxovirus serotype 1, Texas, USGS Science Data Catalog (SDC), Utah, avian paramyxovirus serotype 1, histopathology, immunohistochemistry, pathogenesis, rock pigeon, Fewer tags A Novel Gonadotropic Microsporidian Parasite (Microsporidium clinchi n. sp.) Infecting a Declining Population of Pheasantshell Mussels (Actinonaias pectorosa) (Unioinidae) from the Clinch River, USA Freshwater mussels of the order Unionida are among the most endangered animal groups globally, but the causes of population declines are often enigmatic with little known about the role of disease. In 2018, we collected wild adult pheasantshell (Actinonaias pectorosa) and mucket (Actinonaias ligamentina) during an epidemiologic survey investigating an ongoing mussel mass mortality event in the Clinch River, USA. Histopathology and transmission electron microscopy showed a novel microsporidian parasite primarily infecting the ovary of pheasantshell. Sequencing of the small subunit rRNA gene produced a 1333 bp sequence with greatest similarity to Pseudonosema cristatellae (AF484694.1; 86.36%; e-value = 0), a microsporidium... Categories: Data; Tags: Actinonaias pectorosa, Clinch River, Virginia and Tennessee, USA, Microsporidium clinchi n. sp., PCR, TEM, All tags... USGS Science Data Catalog (SDC), Wildlife Disease, biota, bivalves, freshwater mussel, histopathology, microsporidia, unionid, Fewer tags Histopathology of American Kestrels (Falco sparverius) Exposed to Two Brodifacoum Isomer Formulations with Differing Elimination Half-Lives This dataset documents histopathological changes in liver, kidney, skeletal muscle and intestine of captive American kestrels (Falco sparverius) exposed to brodifacoum formulations with differing elimination half-lives in target rodents. The toxicity of two brodifacoum formulations with stereoisomers having markedly different elimination half-lives in rats (Formulation A containing the 2 least persistent stereoisomers, Formulation B containing the most persistent stereoisomer) were tested in a 7-day dietary feeding trial. Based on previous kestrel studies using commercially available brodifacoum, Formulations A and B were each provided at 3 dietary concentrations (0.05, 0.1 and 0.5 µg/g diet, 4 kestrels/dose level)... Categories: Data; Tags: Anticoagulant, Environmental Health, USGS Eastern Ecological Science Center, Laurel, MD, USGS National Wildlife Health Center, Madison, Wisconsin, USA, USGS Science Data Catalog (SDC), All tags... Wildlife Disease, biota, birds, brodifacoum isomers, hazard, histopathology, non-target effects, risk, Fewer tags Sea star wasting disease pathology Sea star wasting disease (SSWD) is a suite of poorly described non-specific clinical signs including abnormal posture, epidermal ulceration, and limb autotomy (sloughing) causing mortalities of over 20 species of sea stars and subsequent ecological shifts throughout the northeastern Pacific. While SSWD is widely assumed to be infectious with environmental conditions facilitating disease progression, little data exist on cellular changes associated with disease that could inform mechanisms of disease pathogenesis and host susceptibility. Here, we replicated SSWD by exposing captive Pisaster ochraceus to a suite of non-infectious organic substances and show that development of gross lesions is a basal to surface process... Categories: Data; Tags: Bodega Bay, USGS Science Data Catalog (SDC), Wildlife Disease, biota, clinical pathology, All tags... echinoderms, electron microscopy, histopathology, light microscopy, Fewer tags