A5029018491- Animal Disease Management and Epidemiology
- Amphibian and Reptile Biology
- Wildlife Ecology and Conservation
- Microbial infections and disease research
- Species Distribution and Climate Change
- Zoonotic diseases and public health
- Parasite Biology and Host Interactions
- Viral Infections and Vectors
- Influenza Virus Research Studies
- Animal Behavior and Welfare Studies
- Prion Diseases and Protein Misfolding
- Dermatological diseases and infestations
- Viral gastroenteritis research and epidemiology
- Animal Behavior and Reproduction
- Vector-Borne Animal Diseases
- Turtle Biology and Conservation
- Primate Behavior and Ecology
- Mosquito-borne diseases and control
- Mycobacterium research and diagnosis
- Tuberculosis Research and Epidemiology
- Vector-borne infectious diseases
- Respiratory viral infections research
- Animal Virus Infections Studies
- Animal Ecology and Behavior Studies
- Insect and Arachnid Ecology and Behavior
National Wildlife Health Center
2016-2025
United States Geological Survey
2016-2025
Center for Epidemiology and Animal Health
2015-2018
Animal and Plant Health Inspection Service
2015-2018
University of Minnesota
2016
United States Department of Agriculture
2014-2016
Minnesota Department of Natural Resources
2016
Colorado State University
2012-2015
Pennsylvania State University
2009-2014
Center for Disease Dynamics, Economics & Policy
2009-2014
Abstract Cross-species disease transmission between wildlife, domestic animals and humans is an increasing threat to public veterinary health. Wild pigs are increasingly a potential health threat. Here we investigate 84 pathogens the host species most at risk for with wild using network approach. We assess agricultural human by evaluating status of these co-occurrence pigs, agriculture humans. identified 34 (87%) OIE listed swine that cause clinical in livestock, poultry, On average 73%...
Wild pigs (Sus scrofa), also known as wild swine, feral pigs, or hogs, are one of the most widespread and successful invasive species around world. have been linked to extensive costly agricultural damage present a serious threat plant animal communities due their rooting behavior omnivorous diet. We modeled current distribution in United States better understand physiological ecological factors that may determine potential guide future study eradication efforts. Using national-scale pig...
Abstract Male‐biased infection is a common phenomenon in vertebrate‐parasite systems and male‐biased transmission has been experimentally demonstrated. One mechanism that hypothesized to create the immuno‐suppressive effect of testosterone because it increases susceptibility infection. Testosterone also influences host behaviour and, consequently, may increase exposure parasites. To test how could transmission, we undertook longitudinal mark‐recapture study where elevated levels wild male...
Globalization has increased the potential for introduction and spread of novel pathogens over large spatial scales necessitating continental-scale disease models to guide emergency preparedness. Livestock models, such as those 2001 foot-and-mouth (FMD) epidemic in United Kingdom, represent some best case studies large-scale spread. However, generalization these explore outcomes other systems, States's cattle industry, been hampered by differences system size complexity absence suitable...
Abstract The salamander chytrid fungus ( Batrachochytrium salamandrivorans [Bsal]) is causing massive mortality of salamanders in Europe. potential for spread via international trade into North America and the high diversity has catalyzed concern about Bsal U.S. Surveillance programs invading pathogens must initially meet challenges that include low rates occurrence on landscape, prevalence at a site, imperfect detection diagnostic tests. We implemented large-scale survey to determine if was...
Snake fungal disease (SFD; ophidiomycosis), caused by the pathogen Ophidiomyces ophiodiicola (Oo), has been documented in wild snakes North America and Eurasia, is considered an emerging eastern United States of America. However, a lack historical data made it challenging to determine whether Oo recent arrival USA or SFD emergence due other factors. Here, we examined genomes 82 strains pathogen's history USA. from formed clade (Clade II) distinct European I), molecular dating indicated that...
Chronic wasting disease (CWD) is a fatal of white-tailed deer (Odocoileus virginianus) caused by transmissible protease-resistant prions. Since the discovery CWD in southern Wisconsin 2001, more than 20,000 have been removed from >2,500-km2 eradication zone surrounding three initial cases. Nearly all were tested for infection and sex, age, harvest location recorded. Our analysis used data 310-km2 core study area where prevalence was higher areas. We found no difference rates between infected...
1. Social organization and interactions among individuals are suspected to play important roles in the transmission potential management of wildlife diseases. However, few studies have been conducted evaluate sociality disease transmission. We evaluated hypothesis socially facilitated chronic wasting (CWD) adult female white-tailed deer using spatial location genetic relatedness for 1387 deer, locations 1321 male harvested during 2002–2004 CWD control efforts Wisconsin, USA. 2. Genetically...
The process of disease transmission is determined by the interaction host susceptibility and exposure to parasite infectious stages. Host behavior an important determinant likelihood stages but difficult measure often assumed be homogenous in models spread. We evaluated importance precisely defining contact when using networks that estimate predict infection prevalence a replicated, empirical system. In particular, we hypothesized patterns would predicted only network defined according life...
Bovine tuberculosis (bTB) was discovered in a Minnesota cow through routine slaughter surveillance 2005 and the resulting epidemiological investigation led to discovery of infection both cattle white-tailed deer state. From 2009, total 12 beef herds 27 free-ranging (Odocoileus virginianus) were found infected small geographic region northwestern Minnesota. Genotyping isolates determined shared same strain bTB, it similar types southwestern United States Mexico. Whole genomic sequencing...
Species with extensive geographical ranges pose special challenges to assessing drivers of wildlife disease, necessitating collaborative and large-scale analyses. The imperilled foothill yellow-legged frog ( Rana boylii ) inhabits a wide range variable conditions in rivers California Oregon (USA), is considered threatened by the pathogen Batrachochytrium dendrobatidis (Bd). To assess Bd infections over time space, we compiled 2000 datapoints from R. museum specimens (collected 1897–2005)...
The ability to rapidly respond wildlife health events is essential. However, such are often unpredictable, especially with anthropogenic disturbances and climate-related environmental changes driving unforeseen threats. Many also short-lived go undocumented, making it difficult draw on lessons learned from past investigations. We report the response a mortality event observed predominantly in wild passerines eastern United States. began May 2021 when rehabilitators private citizens reported...
Abstract Batrachochytrium dendrobatidis (Bd) is a globally distributed fungal pathogen of amphibians that has contributed to one the largest disease‐related biodiversity losses in wildlife. Bd regularly viewed through lens global wildlife epizootic because spread highly virulent genetic lineages resulted well‐documented declines and extinctions multiple amphibian species. However, current state occurrence, host range, impacts, ecological drivers remains poorly understood outside most...
Networks are rarely completely observed and prediction of unobserved edges is an important problem, especially in disease spread modeling where networks used to represent the pattern contacts. We focus on a partially cattle movement network U.S. present method for scaling up full based Bayesian inference, with aim informing epidemic models United States. The 10% state stratified sample Interstate Certificates Veterinary Inspection that required interstate movement; describing approximately...
Emerging infectious diseases such as chytridiomycosis and ranavirus infections are important contributors to the worldwide decline of amphibian populations. We reviewed data on 247 anuran mortality events in 43 States United from 1999-2015. Our findings suggest that a severe disease tadpoles caused by protist belonging phylum Perkinsea might represent third most common anurans after chytridiomycosis. Severe (SPI) were systemic led multiorganic failure death. The SPI affected numerous species...
A research priority can be defined as a knowledge gap that, if resolved, identifies the optimal course of conservation action. We (a group geographically distributed and multidisciplinary scientists) used tools from nominal theory decision analysis to collaboratively identify prioritize information needs within context disease-associated amphibian decline, in order develop strategy that would support US management agency needs. developed iterated influence diagrams create assess unified...
Vector control remains the primary defense against dengue fever. Its success relies on assumption that vector density is related to disease transmission. Two operational issues include amount by which mosquito should be reduced minimize transmission and spatio-temporal allotment of resources needed reduce in a cost-effective manner. Recently, novel technology, MI-Dengue, was implemented city-wide several Brazilian cities provide real-time surveillance data for spatial prioritization...
In 2015, a major outbreak of highly pathogenic avian influenza virus (HPAIV) infection devastated poultry facilities in Minnesota, USA. To understand the potential role wild birds, we tested 3,139 waterfowl fecal samples and 104 sick dead birds during March 9-June 4, 2015. HPAIV was isolated from Cooper's hawk but not samples.
The emerging amphibian pathogen Batrachochytrium salamandrivorans (Bsal) is a severe threat to global urodelan (salamanders, newts, and related taxa) biodiversity. Bsal has not been detected, date, in North America, but the risk high because America one of hotspots for American United States response discovery Europe was take risk-based approach preventive management actions, including interim regulations on importation captive salamanders large-scale surveillance effort. Risk-based...