Tonie Rocke
Tonie Rocke is a Research Epidemiologist at the National Wildlife Health Center.
Science and Products
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Moderate susceptibility to subcutaneous plague (Yersinia pestis) challenge in vaccine-treated and untreated Sonoran deer mice (Peromyscus maniculatus sonoriensis) and northern grasshopper mice (Onychomys leucogaster) Moderate susceptibility to subcutaneous plague (Yersinia pestis) challenge in vaccine-treated and untreated Sonoran deer mice (Peromyscus maniculatus sonoriensis) and northern grasshopper mice (Onychomys leucogaster)
The variable response of wild mice to Yersinia pestis infection, the causative agent of plague, has generated much speculation concerning their role in the ecology of this potentially lethal disease. Researchers have questioned the means by which Y. pestis is maintained in nature and also sought methods for managing the disease. Here we assessed the efficacy of a new tool, the sylvatic...
Authors
Gebbiena Bron, Susan Smith, Judy L. Williamson, Daniel W. Tripp, Tonie E. Rocke
Effects of climate change on plague exposure pathways and resulting disease dynamics Effects of climate change on plague exposure pathways and resulting disease dynamics
Introduction and Objectives: Sylvatic plague, a zoonotic flea-borne disease, caused by the bacterium Yersinia pestis, is relevant to the Department of Defense (DOD), because prairie dogs and other susceptible rodents are present on military installations in several western states. Arthropod-borne diseases, like plague, are thought to be particularly sensitive to local climate conditions...
Authors
Tonie E. Rocke, Robin E. Russell, Michael D. Samuel, Rachel C. Abbott, Julia Poje
Flea parasitism and host survival in a plague-relevant system: Theoretical and conservation implications Flea parasitism and host survival in a plague-relevant system: Theoretical and conservation implications
Plague is a bacterial zoonosis of mammalian hosts and flea vectors. The disease is capable of ravaging rodent populations and transforming ecosystems. Because plague mortality is likely to be predicted by flea parasitism, it is critical to understand vector dynamics. It has been hypothesized that paltry precipitation and reduced vegetative production predispose herbivorous rodents to
Authors
David A. Eads, Rachel C. Abbott, Dean E. Biggins, Tonie E. Rocke
Clinical presentation and serological responses to natural outbreaks of rabies in a captive colony of common vampire bats Clinical presentation and serological responses to natural outbreaks of rabies in a captive colony of common vampire bats
We report mortality events in a group of 123 common vampire bats (Desmodus rotundus) captured in México and housed for a rabies vaccine efficacy study in Madison, Wisconsin. Bat mortalities occurred in México and Wisconsin, but rabies cases reported herein are only those that occurred after arrival in Madison (n = 15). Bats were confirmed positive for rabies virus (RABV) by the direct...
Authors
Elsa M. Cardenas-Canales, Crystal M. Gigante, Lauren A. Greenberg, Andres Velasco-Villa, James A. Ellison, Panayampalli S. Satheshkumar, Lex G Medina-Magües, Richard Griesser, Elizabeth Falendysz, Ignacio Amezcua, Jorge E. Osorio, Tonie E. Rocke
Fluorescent biomarkers demonstrate prospects for spreadable vaccines to control disease transmission in wild bats Fluorescent biomarkers demonstrate prospects for spreadable vaccines to control disease transmission in wild bats
Vaccines that autonomously transfer among individuals have been proposed as a strategy to control infectious diseases within inaccessible wildlife populations. However, rates of vaccine spread and epidemiological efficacy in real-world systems remain elusive. Here, we investigate whether topical vaccines that transfer among individuals through social contacts can control vampire bat...
Authors
Kevin M. Bakker, Tonie E. Rocke, Jorge E. Osorio, Rachel C. Abbott, Carlos Tello, Jorge Carerra, William Valderrama, Carlos Shiva, Nestor Falcon, Daniel G. Streicker
Differential plague susceptibility in species and populations of prairie dogs Differential plague susceptibility in species and populations of prairie dogs
Laboratory trials conducted over the past decade at U.S. Geological Survey National Wildlife Health Center indicate that wild populations of prairie dogs (Cynomys spp.) display different degrees of susceptibility to experimental challenge with fully virulent Yersinia pestis, the causative agent of plague. We evaluated patterns in prairie dog susceptibility to plague to determine whether...
Authors
Robin E. Russell, Daniel W. Tripp, Tonie E. Rocke
Science and Products
Filter Total Items: 16
No Result Found
Filter Total Items: 134
Moderate susceptibility to subcutaneous plague (Yersinia pestis) challenge in vaccine-treated and untreated Sonoran deer mice (Peromyscus maniculatus sonoriensis) and northern grasshopper mice (Onychomys leucogaster) Moderate susceptibility to subcutaneous plague (Yersinia pestis) challenge in vaccine-treated and untreated Sonoran deer mice (Peromyscus maniculatus sonoriensis) and northern grasshopper mice (Onychomys leucogaster)
The variable response of wild mice to Yersinia pestis infection, the causative agent of plague, has generated much speculation concerning their role in the ecology of this potentially lethal disease. Researchers have questioned the means by which Y. pestis is maintained in nature and also sought methods for managing the disease. Here we assessed the efficacy of a new tool, the sylvatic...
Authors
Gebbiena Bron, Susan Smith, Judy L. Williamson, Daniel W. Tripp, Tonie E. Rocke
Effects of climate change on plague exposure pathways and resulting disease dynamics Effects of climate change on plague exposure pathways and resulting disease dynamics
Introduction and Objectives: Sylvatic plague, a zoonotic flea-borne disease, caused by the bacterium Yersinia pestis, is relevant to the Department of Defense (DOD), because prairie dogs and other susceptible rodents are present on military installations in several western states. Arthropod-borne diseases, like plague, are thought to be particularly sensitive to local climate conditions...
Authors
Tonie E. Rocke, Robin E. Russell, Michael D. Samuel, Rachel C. Abbott, Julia Poje
Flea parasitism and host survival in a plague-relevant system: Theoretical and conservation implications Flea parasitism and host survival in a plague-relevant system: Theoretical and conservation implications
Plague is a bacterial zoonosis of mammalian hosts and flea vectors. The disease is capable of ravaging rodent populations and transforming ecosystems. Because plague mortality is likely to be predicted by flea parasitism, it is critical to understand vector dynamics. It has been hypothesized that paltry precipitation and reduced vegetative production predispose herbivorous rodents to
Authors
David A. Eads, Rachel C. Abbott, Dean E. Biggins, Tonie E. Rocke
Clinical presentation and serological responses to natural outbreaks of rabies in a captive colony of common vampire bats Clinical presentation and serological responses to natural outbreaks of rabies in a captive colony of common vampire bats
We report mortality events in a group of 123 common vampire bats (Desmodus rotundus) captured in México and housed for a rabies vaccine efficacy study in Madison, Wisconsin. Bat mortalities occurred in México and Wisconsin, but rabies cases reported herein are only those that occurred after arrival in Madison (n = 15). Bats were confirmed positive for rabies virus (RABV) by the direct...
Authors
Elsa M. Cardenas-Canales, Crystal M. Gigante, Lauren A. Greenberg, Andres Velasco-Villa, James A. Ellison, Panayampalli S. Satheshkumar, Lex G Medina-Magües, Richard Griesser, Elizabeth Falendysz, Ignacio Amezcua, Jorge E. Osorio, Tonie E. Rocke
Fluorescent biomarkers demonstrate prospects for spreadable vaccines to control disease transmission in wild bats Fluorescent biomarkers demonstrate prospects for spreadable vaccines to control disease transmission in wild bats
Vaccines that autonomously transfer among individuals have been proposed as a strategy to control infectious diseases within inaccessible wildlife populations. However, rates of vaccine spread and epidemiological efficacy in real-world systems remain elusive. Here, we investigate whether topical vaccines that transfer among individuals through social contacts can control vampire bat...
Authors
Kevin M. Bakker, Tonie E. Rocke, Jorge E. Osorio, Rachel C. Abbott, Carlos Tello, Jorge Carerra, William Valderrama, Carlos Shiva, Nestor Falcon, Daniel G. Streicker
Differential plague susceptibility in species and populations of prairie dogs Differential plague susceptibility in species and populations of prairie dogs
Laboratory trials conducted over the past decade at U.S. Geological Survey National Wildlife Health Center indicate that wild populations of prairie dogs (Cynomys spp.) display different degrees of susceptibility to experimental challenge with fully virulent Yersinia pestis, the causative agent of plague. We evaluated patterns in prairie dog susceptibility to plague to determine whether...
Authors
Robin E. Russell, Daniel W. Tripp, Tonie E. Rocke