Long-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Wing from dead Tri-colored bat (Perimyotis subflavus) lit from above with hand-held 51 LED 385-nm UV flashlight shows points of orange–yellow fluorescence.
Does White-nose Syndrome pose a risk to human health?
Thousands of people have visited affected caves and mines since White-nose Syndrome (WNS) was first observed, and there have been no reported human illnesses attributable to WNS. We are still learning about WNS, but we know of no risk to humans from contact with WNS-affected bats. However, we urge taking precautions and not exposing yourself to WNS. Biologists and researchers use protective clothing when entering caves or handling bats.
Learn more: USGS NWHC White-Nose Syndrome
Related Content
Are bats dangerous?
All healthy bats try to avoid humans by taking flight and are not purposely aggressive. Most bats are about the size of a mouse and use their small teeth and weak jaws to grind up insects. You should avoid handling bats because several species, such as the hoary and big brown bats, have large teeth that can puncture skin if they are handled improperly. Less than one percent of the bat population...
What should I do if I find dead or dying bats, or if I observe bats with signs of White-nose Syndrome?
If you find a dead or dying bat: Contact your state wildlife agency , file an electronic report in those states that offer this service, e-mail U.S. Fish and Wildlife Service biologists in your area, or contact your nearest Fish and Wildlife Service field office to report your potential White-nose Syndrome (WNS) observations. It is important to determine the species of bat in case it is a...
What species of bats are affected by White-nose Syndrome?
White-nose Syndrome mostly affects hibernating bats. More than half of the 47 bat species living in the United States and Canada hibernate to survive the winter. Twelve bat species , including two endangered species and one threatened species, have been confirmed with white-nose syndrome in North America. The causative fungus, Pseudogymnoascus destructans ( Pd ), has been found on an additional...
Where do bats live?
Bats can be found in almost all parts of the world and in most regions of the United States. In general, bats seek out a variety of daytime retreats such as caves, rock crevices, old buildings, bridges, mines, and trees. Different species require different roost sites. Some species, such as the Mexican free-tailed and gray bats live in large colonies in caves. A few solitary species, such as the...
What is White-nose Syndrome?
White-nose syndrome is an emergent disease of hibernating bats that has spread from the northeastern to the central United States at an alarming rate. Since the winter of 2007-2008, millions of insect-eating bats in at least 40 states and eight Canadian provinces have died from this devastating disease. The disease is named for the white fungus, Pseudogymnoascus destructans , that infects skin of...
Long-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Wing from dead Tri-colored bat (Perimyotis subflavus) lit from above with hand-held 51 LED 385-nm UV flashlight shows points of orange–yellow fluorescence.
Long-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Points of orange–yellow fluorescence (arrows) detected on a roosting Indiana myotis (Myotis sodalis) following surface illumination with a field-portable 9-watt 368-nm fluorescent UV light (photo by Tina Cheng with permission).
Long-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Points of orange–yellow fluorescence (arrows) detected on a roosting Indiana myotis (Myotis sodalis) following surface illumination with a field-portable 9-watt 368-nm fluorescent UV light (photo by Tina Cheng with permission).
Hibernating little brown bat with white muzzle typical of White-nose syndrome.
Hibernating little brown bat with white muzzle typical of White-nose syndrome.
Since first discovered in 2007 in New York, white-nose syndrome has spread to 16 states, including Virginia and Maryland, and four Canadian provinces. The disease is estimated to have killed over five million hibernating bats.
Since first discovered in 2007 in New York, white-nose syndrome has spread to 16 states, including Virginia and Maryland, and four Canadian provinces. The disease is estimated to have killed over five million hibernating bats.
Insect-eating bats provide pest-control services that save the U.S. agriculture industry over $3 billion per year, according to a study released today in the journal Science. However, scientists with the U.S.
Insect-eating bats provide pest-control services that save the U.S. agriculture industry over $3 billion per year, according to a study released today in the journal Science. However, scientists with the U.S.
Bats showing signs of infections with Pseudogymnoascus destructans, the fungus that causes white-nose syndrome.
Bats showing signs of infections with Pseudogymnoascus destructans, the fungus that causes white-nose syndrome.
Bats die prematurely when affected by white-nose syndrome.
Bats die prematurely when affected by white-nose syndrome.
White-Nose Syndrome Diagnostic Laboratory Network handbook
U.S. Geological Survey response to white-nose syndrome in bats
Information to prevent human exposure to disease agents associated with wildlife—U.S. Geological Survey circulars on zoonotic disease
White-nose syndrome in North American bats - U.S. Geological Survey updates
Related Content
- FAQ
Are bats dangerous?
All healthy bats try to avoid humans by taking flight and are not purposely aggressive. Most bats are about the size of a mouse and use their small teeth and weak jaws to grind up insects. You should avoid handling bats because several species, such as the hoary and big brown bats, have large teeth that can puncture skin if they are handled improperly. Less than one percent of the bat population...
What should I do if I find dead or dying bats, or if I observe bats with signs of White-nose Syndrome?
If you find a dead or dying bat: Contact your state wildlife agency , file an electronic report in those states that offer this service, e-mail U.S. Fish and Wildlife Service biologists in your area, or contact your nearest Fish and Wildlife Service field office to report your potential White-nose Syndrome (WNS) observations. It is important to determine the species of bat in case it is a...
What species of bats are affected by White-nose Syndrome?
White-nose Syndrome mostly affects hibernating bats. More than half of the 47 bat species living in the United States and Canada hibernate to survive the winter. Twelve bat species , including two endangered species and one threatened species, have been confirmed with white-nose syndrome in North America. The causative fungus, Pseudogymnoascus destructans ( Pd ), has been found on an additional...
Where do bats live?
Bats can be found in almost all parts of the world and in most regions of the United States. In general, bats seek out a variety of daytime retreats such as caves, rock crevices, old buildings, bridges, mines, and trees. Different species require different roost sites. Some species, such as the Mexican free-tailed and gray bats live in large colonies in caves. A few solitary species, such as the...
What is White-nose Syndrome?
White-nose syndrome is an emergent disease of hibernating bats that has spread from the northeastern to the central United States at an alarming rate. Since the winter of 2007-2008, millions of insect-eating bats in at least 40 states and eight Canadian provinces have died from this devastating disease. The disease is named for the white fungus, Pseudogymnoascus destructans , that infects skin of...
- Multimedia
UV Light Showing White-Nose Syndrome in Bat's WingUV Light Showing White-Nose Syndrome in Bat's Wing
Long-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Wing from dead Tri-colored bat (Perimyotis subflavus) lit from above with hand-held 51 LED 385-nm UV flashlight shows points of orange–yellow fluorescence.
Long-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Wing from dead Tri-colored bat (Perimyotis subflavus) lit from above with hand-held 51 LED 385-nm UV flashlight shows points of orange–yellow fluorescence.
White-Nose Syndrome Lesions Under UV LightLong-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Points of orange–yellow fluorescence (arrows) detected on a roosting Indiana myotis (Myotis sodalis) following surface illumination with a field-portable 9-watt 368-nm fluorescent UV light (photo by Tina Cheng with permission).
Long-wave ultraviolet (UV) and white-light illumination of lesions associated with white-nose syndrome. Points of orange–yellow fluorescence (arrows) detected on a roosting Indiana myotis (Myotis sodalis) following surface illumination with a field-portable 9-watt 368-nm fluorescent UV light (photo by Tina Cheng with permission).
Bat with White-nose SyndromeHibernating little brown bat with white muzzle typical of White-nose syndrome.
Hibernating little brown bat with white muzzle typical of White-nose syndrome.
Bat White-nose Syndrome: There is a New Fungus Among Us By Dr. David BlehertBat White-nose Syndrome: There is a New Fungus Among Us By Dr. David BlehertBat White-nose Syndrome: There is a New Fungus Among Us By Dr. David BlehertSince first discovered in 2007 in New York, white-nose syndrome has spread to 16 states, including Virginia and Maryland, and four Canadian provinces. The disease is estimated to have killed over five million hibernating bats.
BySince first discovered in 2007 in New York, white-nose syndrome has spread to 16 states, including Virginia and Maryland, and four Canadian provinces. The disease is estimated to have killed over five million hibernating bats.
ByBeyond Billions: Threatened Bats are Worth Billions to AgricultureBeyond Billions: Threatened Bats are Worth Billions to AgricultureInsect-eating bats provide pest-control services that save the U.S. agriculture industry over $3 billion per year, according to a study released today in the journal Science. However, scientists with the U.S.
Insect-eating bats provide pest-control services that save the U.S. agriculture industry over $3 billion per year, according to a study released today in the journal Science. However, scientists with the U.S.
Hibernating Bats with White-nose SyndromeBats showing signs of infections with Pseudogymnoascus destructans, the fungus that causes white-nose syndrome.
Bats showing signs of infections with Pseudogymnoascus destructans, the fungus that causes white-nose syndrome.
Dead Bats Near Cave EntranceBats die prematurely when affected by white-nose syndrome.
Bats die prematurely when affected by white-nose syndrome.
- Publications
White-Nose Syndrome Diagnostic Laboratory Network handbook
When responding to a wildlife disease outbreak, managers depend on consistent and clear data to make decisions. However, diagnostic methods for detecting pathogens of wildlife often lack the level of procedural and interpretational standardization that occurs in the investigation of human and domestic animal diseases. This lack of standardization can hamper diagnostic reliability in two ways. FirsAuthorsKatrina E. AlgerU.S. Geological Survey response to white-nose syndrome in bats
OverviewSince its discovery in 2007, the fungal disease known as white-nose syndrome (WNS) has killed more than six million bats. Ten of 47 bat species have been affected by WNS across 32 States and 5 Canadian Provinces. The cold-growing fungus (Pseudogymnoascus destructans) that causes WNS infects skin covering the muzzle, ears, and wings of hibernating bats. The fungus erodes deep into the vitalAuthorsM. Camille Hopkins, Suzanna C. SoileauInformation to prevent human exposure to disease agents associated with wildlife—U.S. Geological Survey circulars on zoonotic disease
The U.S. Geological Survey in collaboration with the U.S. Fish and Wildlife Service and others have published reports with information about geographic distribution, specific pathogens, disease ecology, and strategies to avoid exposure and infection for a selection of zoonotic diseases. Zoonotic diseases are diseases that can be passed from animals to humans, such as rabies and plague. This summarAuthorsCarol U. Meteyer, Gail Moede RogallWhite-nose syndrome in North American bats - U.S. Geological Survey updates
White-nose syndrome is a devastating wildlife disease that has killed millions of hibernating bats. This disease first appeared in New York during 2007 and has continued to spread at an alarming rate from the northeastern to the central United States and throughout eastern Canada. The disease is named for the fungus Pseudogymnoascus destructans, which often appears white when it infects the skin oAuthorsEmily W. Lankau, Gail Moede Rogall - News