Distribution of Chronic Wasting Disease in North America_2026
Distribution of Chronic Wasting Disease in North America_2026Distribution of Chronic Wasting Disease in North America, updated Jul 2026
Multimedia
Search here for some of our available field imagery and videos.
Images
Distribution of Chronic Wasting Disease in North America_2026
Distribution of Chronic Wasting Disease in North America_2026
Distribution of Chronic Wasting Disease in North America_2026Distribution of Chronic Wasting Disease in North America, updated Jul 2026
Ring Vaccination - Rabies and Vampire Bats
Scientists at the USGS National Wildlife Health Center have been working on vaccines to protect bats from diseases like such as rabies and white-nose syndrome. The most promising method is called orotopical vaccination. By applying the vaccine to the bat’s muzzle, the gel-based vaccine is spread to others in the colony through grooming.
Scientists at the USGS National Wildlife Health Center have been working on vaccines to protect bats from diseases like such as rabies and white-nose syndrome. The most promising method is called orotopical vaccination. By applying the vaccine to the bat’s muzzle, the gel-based vaccine is spread to others in the colony through grooming.
photograph by Anna Pink Snowy owl
Photograph from a Snowy Owl (Bubo scandiacus) found dead in Wisconsin, USA. Numerous nematodes are present in the ventriculus (white arrowhead) and duodenum (black arrow).
Photograph from a Snowy Owl (Bubo scandiacus) found dead in Wisconsin, USA. Numerous nematodes are present in the ventriculus (white arrowhead) and duodenum (black arrow).
Scientists investigate pathogens in salamanders
A USGS scientist reaches for a microbiological plate with cultures from salamander skin to investigate for potential pathogens.
A USGS scientist reaches for a microbiological plate with cultures from salamander skin to investigate for potential pathogens.
Scientists investigate pathogens in salamanders
A USGS scientist prepares to analyze a skin swab from a salamander to investigate for potential pathogens.
A USGS scientist prepares to analyze a skin swab from a salamander to investigate for potential pathogens.
Scientists investigate pathogens in salamanders
A USGS scientist examines a skin sample from a salamander as part of a study to investigate for potential pathogens.
A USGS scientist examines a skin sample from a salamander as part of a study to investigate for potential pathogens.
Videos
Collecting a bat skin biopsy for white-nose syndrome surveillance (AD)
Collecting a bat skin biopsy for white-nose syndrome surveillance (AD)This video demonstrates the proper procedure for collecting a skin biopsy from a bat when conducting white-nose syndrome surveillance.
Collecting a bat skin biopsy for white-nose syndrome surveillance (AD)
Collecting a bat skin biopsy for white-nose syndrome surveillance (AD)This video demonstrates the proper procedure for collecting a skin biopsy from a bat when conducting white-nose syndrome surveillance.
Collecting a skin swab for white-nose syndrome surveillance (AD)
Collecting a skin swab for white-nose syndrome surveillance (AD)This video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance.
Collecting a skin swab for white-nose syndrome surveillance (AD)
Collecting a skin swab for white-nose syndrome surveillance (AD)This video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance.
Approved euthanasia methods for bats (Microchiroptera)
Approved euthanasia methods for bats (Microchiroptera)This video shows the proper procedure for performing cervical dislocation on a bat with clinical signs of white-nose syndrome to be submitted to a diagnostic laboratory for evaluation.
Approved euthanasia methods for bats (Microchiroptera)
Approved euthanasia methods for bats (Microchiroptera)This video shows the proper procedure for performing cervical dislocation on a bat with clinical signs of white-nose syndrome to be submitted to a diagnostic laboratory for evaluation.
Collecting a skin swab for white-nose syndrome surveillance
Collecting a skin swab for white-nose syndrome surveillanceThis video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance.
Collecting a skin swab for white-nose syndrome surveillance
Collecting a skin swab for white-nose syndrome surveillanceThis video shows the proper technique for collecting a skin swab from a bat that is either roosting in place or is manually restrained for white-nose syndrome surveillance.
UV Screening for Bat White-Nose Syndrome Surveillance
UV Screening for Bat White-Nose Syndrome SurveillanceLong-wave ultraviolet (UV) light can be used to detect orange fluorescence associated with white-nose syndrome (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome-surveillance) on bat skin.
UV Screening for Bat White-Nose Syndrome Surveillance
UV Screening for Bat White-Nose Syndrome SurveillanceLong-wave ultraviolet (UV) light can be used to detect orange fluorescence associated with white-nose syndrome (https://www.usgs.gov/centers/nwhc/science/white-nose-syndrome-surveillance) on bat skin.
Approved euthanasia methods for bats (Microchiroptera)—Audio-Described
Approved euthanasia methods for bats (Microchiroptera)—Audio-DescribedThis video shows the proper procedure for performing cervical dislocation on a bat with clinical signs of white-nose syndrome to be submitted to a diagnostic laboratory for evaluation.
Approved euthanasia methods for bats (Microchiroptera)—Audio-Described
Approved euthanasia methods for bats (Microchiroptera)—Audio-DescribedThis video shows the proper procedure for performing cervical dislocation on a bat with clinical signs of white-nose syndrome to be submitted to a diagnostic laboratory for evaluation.
Audio
Outstanding in the Field (Ep 3): Chronic Wasting Disease - Oh, Deer
Outstanding in the Field (Ep 3): Chronic Wasting Disease - Oh, DeerThe USGS Ecosystems Mission Area brings you Outstanding in the Field, a series of stories about our science, our adventures, and our efforts to better understand our fish and wildlife and the ecosystems that support them.
Outstanding in the Field (Ep 3): Chronic Wasting Disease - Oh, Deer
Outstanding in the Field (Ep 3): Chronic Wasting Disease - Oh, DeerThe USGS Ecosystems Mission Area brings you Outstanding in the Field, a series of stories about our science, our adventures, and our efforts to better understand our fish and wildlife and the ecosystems that support them.