A cluster of sick or dead animals in an area might indicate a wildlife disease of concern. If you find sick or dead wildlife, contact your closest state or federal wildlife agency; they can decide whether to investigate. You might also contact your local health department to report this occurrence.
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What should be done with a captured snakehead fish?
If you capture a snakehead fish:Do not release the fish or throw it up on the bank (it could wriggle back into the water). Remember, this fish is an air breather and can live a long time out of water.Kill the fish by freezing it or putting it on ice for an extended length of time.Photograph the fish if you have access to a camera so the species of snakehead fish can be positively identified...
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 federally...
What should cavers know and do in regard to White-nose Syndrome?
In response to White-nose Syndrome (WNS), the U.S. Fish and Wildlife Service and individual states request that cavers observe all cave closures and advisories, and avoid caves, mines or passages containing hibernating bats to minimize disturbance to them. The Service asks that cavers and cave visitors stay out of all caves in the affected states and adjoining states to help slow the potential...
How do I handle a sick or dead animal that might have West Nile Virus?
Under normal conditions, humans are unlikely to be infected with West Nile Virus by handling a sick or dead animal. However, there are a number of other infections that could potentially result from handling an animal. To protect yourself from exposure to any illness, you should wear gloves or put a plastic bag over your hand before touching the animal and you should wash your hands with soap and...
What are the visual signs of chronic wasting disease?
Chronic wasting disease (CWD) has an extended incubation period averaging 18–24 months between infection and the onset of noticeable signs. During this time frame animals look and act normal. The most obvious sign of CWD is progressive weight loss. Numerous behavioral changes also have been reported, including decreased social interaction, loss of awareness, and loss of fear of humans. Diseased...
Can my dog or cat get West Nile Virus by eating an infected animal?
Experimentally, it was found that this might be possible. However, there has been no evidence to indicate that West Nile Virus can be naturally transmitted to cats or dogs that carry or consume infected animals. Dogs and cats can be infected with West Nile Virus through the bite of a mosquito, so minimizing their exposure to mosquitoes is recommended.
How do I know if an animal is infected with West Nile Virus?
Signs of infection in wildlife, like in humans, can range from no symptoms to severe symptoms of neurologic illness. Commonly reported signs in animals include weakness, stumbling, trembling, head tremors, inability to fly/walk, and a lack of awareness that allows them to be easily approached and handled. These symptoms, however, can also have other causes. The only way to positively confirm West...
Can hunters get West Nile Virus from eating infected game birds?
Some game birds have tested positive for West Nile Virus (WNV). However, there is no evidence of human infection by consumption of properly cooked infected game. Hunters are likely at higher risk of infection by mosquito exposure, particularly in wetland environments. Protective measures should be taken to prevent mosquito exposure while hunting. There are extremely rare cases of laboratory...
Can I eat Asian carp?
Invasive carp of all types have white, firm, mild flesh, which is excellent table fare, but all Invasive carp also have intramuscular bones in the filets that many people find undesirable. Invasive carp feed low on the food web, are fast growing, are low in fat in the filets, and are not usually bottom feeders — all properties of fish that are lower in contaminants. Like any fish taken from inland...
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...
I have a bird feeder (or birdbath) in my yard. Am I putting myself and healthy birds at risk of West Nile Virus infection?
West Nile Virus is most often spread to humans from the bite of an infected mosquito. However, it’s always a good idea to follow basic hygienic procedures. Birdbaths and feeders should be washed or disinfected regularly. Wash your hands with soap and water after touching the baths/feeders.To prevent mosquitoes from breeding on your property, empty and clean birdbaths at least once a week and...
U.S. Geological Survey science to support wildlife disease management
Safe work practices for working with wildlife
Information to prevent human exposure to disease agents associated with wildlife—U.S. Geological Survey circulars on zoonotic disease
Why bother about wildlife disease?
Anisakiosis and pseudoterranovosis
Toxoplasmosis
Trichinosis
Plague
Bat Rabies and Other Lyssavirus Infections
Disease emergence and resurgence—the wildlife-human connection
Related Content
- FAQ
What should be done with a captured snakehead fish?
If you capture a snakehead fish:Do not release the fish or throw it up on the bank (it could wriggle back into the water). Remember, this fish is an air breather and can live a long time out of water.Kill the fish by freezing it or putting it on ice for an extended length of time.Photograph the fish if you have access to a camera so the species of snakehead fish can be positively identified...
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 federally...
What should cavers know and do in regard to White-nose Syndrome?
In response to White-nose Syndrome (WNS), the U.S. Fish and Wildlife Service and individual states request that cavers observe all cave closures and advisories, and avoid caves, mines or passages containing hibernating bats to minimize disturbance to them. The Service asks that cavers and cave visitors stay out of all caves in the affected states and adjoining states to help slow the potential...
How do I handle a sick or dead animal that might have West Nile Virus?
Under normal conditions, humans are unlikely to be infected with West Nile Virus by handling a sick or dead animal. However, there are a number of other infections that could potentially result from handling an animal. To protect yourself from exposure to any illness, you should wear gloves or put a plastic bag over your hand before touching the animal and you should wash your hands with soap and...
What are the visual signs of chronic wasting disease?
Chronic wasting disease (CWD) has an extended incubation period averaging 18–24 months between infection and the onset of noticeable signs. During this time frame animals look and act normal. The most obvious sign of CWD is progressive weight loss. Numerous behavioral changes also have been reported, including decreased social interaction, loss of awareness, and loss of fear of humans. Diseased...
Can my dog or cat get West Nile Virus by eating an infected animal?
Experimentally, it was found that this might be possible. However, there has been no evidence to indicate that West Nile Virus can be naturally transmitted to cats or dogs that carry or consume infected animals. Dogs and cats can be infected with West Nile Virus through the bite of a mosquito, so minimizing their exposure to mosquitoes is recommended.
How do I know if an animal is infected with West Nile Virus?
Signs of infection in wildlife, like in humans, can range from no symptoms to severe symptoms of neurologic illness. Commonly reported signs in animals include weakness, stumbling, trembling, head tremors, inability to fly/walk, and a lack of awareness that allows them to be easily approached and handled. These symptoms, however, can also have other causes. The only way to positively confirm West...
Can hunters get West Nile Virus from eating infected game birds?
Some game birds have tested positive for West Nile Virus (WNV). However, there is no evidence of human infection by consumption of properly cooked infected game. Hunters are likely at higher risk of infection by mosquito exposure, particularly in wetland environments. Protective measures should be taken to prevent mosquito exposure while hunting. There are extremely rare cases of laboratory...
Can I eat Asian carp?
Invasive carp of all types have white, firm, mild flesh, which is excellent table fare, but all Invasive carp also have intramuscular bones in the filets that many people find undesirable. Invasive carp feed low on the food web, are fast growing, are low in fat in the filets, and are not usually bottom feeders — all properties of fish that are lower in contaminants. Like any fish taken from inland...
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...
I have a bird feeder (or birdbath) in my yard. Am I putting myself and healthy birds at risk of West Nile Virus infection?
West Nile Virus is most often spread to humans from the bite of an infected mosquito. However, it’s always a good idea to follow basic hygienic procedures. Birdbaths and feeders should be washed or disinfected regularly. Wash your hands with soap and water after touching the baths/feeders.To prevent mosquitoes from breeding on your property, empty and clean birdbaths at least once a week and...
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U.S. Geological Survey science to support wildlife disease management
Introduction The U.S. Geological Survey (USGS) serves a principal role in conducting wildlife disease outbreak investigations, surveillance, and ecological research to support management of diseases in free-ranging native wildlife. Approximately 60 percent of emerging human infectious diseases such as COVID-19, are zoonotic, meaning they are transmitted between animals and humans and 70 percent ofAuthorsM. Camille Hopkins, Suzanna C. SoileauSafe work practices for working with wildlife
Most wildlife biologists, technicians, and veterinarians complete their tasks safely and uneventfully every day. However, some significant risks exist in this line of work, and injuries, illnesses, and accidental deaths among wildlife workers do occur. Aviation accidents (airplane and helicopter), drownings, and car and truck accidents are the most common causes of fatalities among wildlife workerAuthorsTegwin Taylor, Danielle ButtkeInformation 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 RogallWhy bother about wildlife disease?
In most developed countries, the maintenance of the numbers of wildlife1 is vested in the natural resource agencies of those countries. During earlier times, game species were the primary focus of natural resource agencies2,3 however, current wildlife conservation continues to transition towards a more holistic focus on biodiversity4 and environmental health5,6. Nevertheless, that transition lagsAuthorsMilton FriendAnisakiosis and pseudoterranovosis
Anisakiosis and pseudoterranovosis are parasitic diseases caused by infection with larval nematodes or roundworms of the genera Anisakis and Pseudoterranova. These infections are zoonoses, meaning they are transmissible between animals and humans and vice versa. The life cycles of Anisakis spp., commonly called whaleworm, and Pseudoterranova spp., commonly called sealworm, are complex and involveAuthorsLena MeasuresToxoplasmosis
Toxoplasmosis (Toxoplasma gondii), one of the better known and more widespread zoonotic diseases, originated in wildlife species and is now well established as a human malady. Food- and waterborne zoonoses, such as toxoplasmosis, are receiving increasing attention as components of disease emergence and resurgence. Toxoplasmosis is transmitted to humans via consumption of contaminated food or waterAuthorsDolores E. Hill, J. P. Dubey, Rachel C. Abbott, Charles van Riper, Elizabeth A. EnrightTrichinosis
Trichinosis, or trichinellosis, is one of the most widespread global parasitic diseases of humans and animals. This ancient disease is caused by the larval stage of parasitic roundworms (nematodes) in the genus Trichinella. Often called the “trichina worm,” this parasite is considered to be the king of the parasite community, because it has adapted to an extremely wide range of hosts including domAuthorsWilliam J. Foreyt, Rachel C. Abbott, Charles van RiperPlague
Plague offers readers an overview of this highly complex disease caused by the bacteria Yersinia pestis. The history of the disease, as well as information about Yersinia pestis and its transmission by fleas, is described. The section Geographic Distribution presents areas of the world and United States where plague occurs most commonly in rodents and humans. Species Susceptibility describes infecAuthorsRachel C. Abbott, Tonie E. RockeBat Rabies and Other Lyssavirus Infections
Bat Rabies and Other Lyssavirus Infections offers readers an overview of the virus variants that cause bat rabies, and geographical patterns in occurrence of this disease. The section Species Susceptibility describes infection rates and trends among bats, humans, and other animals. Disease Ecology considers the biological and environmental dynamics of the disease in various species of bats. PointsAuthorsDenny G. Constantine, David S. BlehertDisease emergence and resurgence—the wildlife-human connection
In 2000, the Global Outbreak Alert and Response Network (GOARN) was organized as a global disease watchdog group to coordinate disease outbreak information and health crisis response. The World Health Organization (WHO) is the headquarters for this network. Understandably, the primary focus for WHO is human health. However, diseases such as the H5N1 avian influenza epizootic in Asian bird populatiAuthorsMilton Friend, James W. Hurley, Pauline Nol, Katherine Wesenberg - News