Archive for the ‘Wildlife Diseases’ Category

Escaped elk ignites debate over disease

Sunday, February 12, 2012

This week’s column deals with a government agency’s desire to kill an elk that escaped from a captive deer facility. Politicians won’t let them. Read on:

When someone in government does something stupid or embarrassing, the silence from official sources can be tomb-like.
Case in point? Let’s call it “The Saga of the Wandering Elk.”
Sometime last year, a bull elk escaped from a Greene Co., Pa., captive cervid facility and strolled across the Mason-Dixon line into Wetzel Co., W.Va.
It stayed there for a while, wandered back to Pennsylvania through the holidays, and recently turned up in Marshall County, W.Va., where it has become somewhat of a celebrity.
State wildlife officials are worried, and one can hardly blame them for their concern.
Elk can carry chronic wasting disease, bovine tuberculosis and brucellosis. The former kills elk, mule deer and white-tailed deer, and the latter two kill cattle.
Captive cervid facilities – places where deer and/or elk are kept behind tall fences and sold for their meat or shot for their antlers by wealthy people – are notorious incubators for chronic wasting disease.
Recent CWD outbreaks in Minnesota and Missouri wild deer were traced directly to captive cervid facilities. Division of Natural Resources officials worry that the footloose elk might also be diseased, and that it might infect local deer or cattle.
Marshall County isn’t exactly an agricultural hotspot, so the chance of spreading brucellosis or bovine tuberculosis is small. On the other hand, Marshall is home to one of West Virginia’s most highly concentrated deer populations. If chronic wasting disease gets started there, it could easily spread into the Northern Panhandle and down the entire Ohio Valley.
To prevent such a possibility, DNR officials would like to shoot the elk. They haven’t come out and said they would, but they issued a news release that strongly implied it.
Big mistake. Local citizens rallied around the elk. They took to Facebook and other social media to lobby on the creature’s behalf.
It’s an election year. The Legislature is in session. The last thing politicians want to do is to offend prospective voters.
So right now, DNR officials have been told not to pull the trigger. They also are forbidden from divulging which politico issued the stay of execution. In fact, they can’t comment about the elk at all.
More than a week ago, I called a DNR official and inquired about the critter’s status, and was told that all questions should be referred to Hoy Murphy, the agency’s public relations person.
I called Murphy. He wasn’t in, so I left a message on his voice mail. Shortly thereafter, I received the following e-mail:
“I’m sorry, but I’ve been told to put all media communications on hold for now. Things have been changing too fast for anyone to keep up, and they figure it’s better to have no response than to send out a response that may be outdated by the time it sees print. I promise I’ll get back to you as soon as I can.”
Not to pick on Murphy, who is a good egg, but there aren’t many things that could change “too fast for anyone to keep up.” Either DNR sharpshooters are allowed to kill the elk or they aren’t.
There’s some question as to whether the elk can be killed on private property without the landowner’s permission, but again that’s an either-or situation.
My personal guess is that the only thing that’s rapidly changing is the potential for northern West Virginia’s deer to have a CWD outbreak. Should that happen, deer hunters should move heaven and earth to find out which politician prevented the DNR from doing something that’s clearly within its authority to do.

Hunter needs rabies shots after killing rabid deer

Friday, February 3, 2012

For the second day in a row, I’m posting a rabies story. This one’s a little unusual, though. It involves a hunter and a rabid deer. Here’s the release from the Pennsylvania Game Commission:

HARRISBURG – Pennsylvania Game Commission officials today announced that a Lancaster County hunter has undergone post-exposure rabies shots after harvesting and field dressing a deer on Jan. 20, in Valley Township, Chester County, that ultimately tested positive for rabies.
“The hunter contacted us about his concerns that the deer was unfit for human consumption,” said John Veylupek, Game Commission Wildlife Conservation Officer (WCO).  “The hunter said that he saw the deer standing in a creek, straining and growling.  He thought there was a coyote nearby from the sounds the deer was making.
“After gathering information from the hunter, as well as samples for testing, it was determined that the deer was rabid. Because the hunter had scratches on his hands and had field dressed the deer without wearing gloves, we considered this a human exposure and urged him to contact his doctor about post-exposure rabies shots.”
Dr. Walter Cottrell, Game Commission wildlife veterinarian, reiterated the agency’s long-standing recommendations that hunters and trappers avoid harvesting animals that appear sick and to wear rubber or latex gloves when field dressing any mammal.
“All mammals are susceptible to rabies and can spread the virus in the right circumstances,” Dr. Cottrell said. “To prevent the spread of wildlife diseases, we encourage hunters and trappers to contact the Game Commission about any animals that they encounter that may appear to be sick.  Also, when field dressing any mammal, it is critical to wear rubber or latex gloves to prevent exposure to not just rabies, but also to other disease organisms.”

Hat tip: J.R. Absher at The Outdoor Pressroom.

Show-and-tell bat sparks rabies scare

Thursday, February 2, 2012

I don’t quite understand why a Rhode Island man felt compelled to walk through Providence holding a box that contained a live bat, but he obviously got something out of it.

Unfortunately, he apparently also felt compelled to show the bat to people. And, naturally, it bit someone. Rabies scare!

From the Associated Press:
PROVIDENCE, R.I. (AP) — Health officials are warning people who were in downtown Providence last week that they may have been exposed to rabies when a man was showing off a bat he had in a box.
Officials say the man was displaying the animal in Kennedy Plaza on the morning of Jan. 23. A health care provider alerted health officials after treating one onlooker for a bat bite and another for suspected rabies exposure.
Bat rabies is highly contagious. Health officials say they’re not sure if the bat had rabies, but they’re advising people who were at the plaza that morning to have themselves checked out and to call the Department of Health.
Officials say the unidentified man was in his 50s and was about 6 feet tall with a beard and glasses.

Bitten by bat, man dies of rabies

Sunday, January 29, 2012

It doesn’t happen often in the United States, but it happened last week in Massachusetts. From the Associated Press:

BARNSTABLE, Mass. (AP) — A Cape Cod man who contracted rabies from a bat’s bite late last year has died of the illness, the first confirmed case of human rabies in Massachusetts since 1935, according to public records and officials.
The Cape Cod Times reports that Kevin Galvin, 63, president of the Marstons Mills Historical Society and owner of a historic home in the center of that village in Barnstable, died Monday in a Boston hospital of the neurological illness.
The state Department of Public Health cited patient confidentiality laws in declining to confirm Galvin’s identity as the person who had been hospitalized, but the newspaper reports that it obtained his death certificate and it lists rabies encephalitis as the cause of his death.
Rabies is a deadly virus that spreads to humans from the saliva of infected animals. The disease affects the central nervous system and brain.
State officials said in December that a Massachusetts man had been hospitalized as the first confirmed case of human rabies in the state in decades, and Barnstable’s health director later elaborated that the victim was a local man in his 60s.
Tests conducted by the Centers for Disease Control and Prevention confirmed that the disease was transmitted by a common species of brown bat, although it was unknown exactly when and where Galvin was bitten. Officials have said they believe he was bitten on his own property.
Lee Mannillo of the Cape Cod Rabies Task Force told the Cape Cod Times that Galvin had undergone an innovative treatment called the “Milwaukee protocol.” It treatment involves administering a cocktail of sedatives while allowing the body to produce natural antibodies to fight off the infection.
He died last Monday, and his funeral took place Saturday.
Galvin’s siblings told the Cape Cod Times that they did not want to talk to the media about their brother’s death, and his wife indicated the same through a friend.
Galvin was widely praised by fellow residents who said he was devoted to the Marstons Mills village, where he had lived for 11 years and was active in environmental issues, loved history and enjoyed restoring his 231-year-old home.
To some fellow residents like Al Baker, Galvin was jokingly known as “the mayor of Marstons Mills.”
“I found him to be a very good guy,” said Baker, who said he was shocked by Galvin’s illness and death, finding it “very sad and disheartening.”
Barnstable Health Director Thomas McKean did not return phone calls, and had said earlier in the week that the victim’s family members had requested privacy.
The last confirmed case of human rabies contracted in Massachusetts was in 1935, with the victim believed to have been a teenager from Saugus.
In 1983, a 30-year-old Waltham man died after being exposed to rabies, apparently from a dog bite in Africa. The man developed symptoms, including high temperature, difficulty breathing, sore throat and excessive salivation, about three months after returning to the U.S., and was admitted to Waltham Hospital, according to CDC records. He died a few weeks later.
There have been other instances over the years in which individuals infected elsewhere have received treatment in Massachusetts because of the state’s highly-regarded hospital system.
The CDC said rabies-related human deaths have fallen dramatically in the U.S. from 100 or more annually at the turn of the century to no more than 2 or 3 per year, most but not all involving bats.
The CDC reported two other fatal human rabies cases this year, one in New York and one in New Jersey, with both victims believed to have acquired the disease from dog bites outside the U.S., Haiti in one case and Afghanistan the other.
While U.S. cases are rare, worldwide an estimated 55,000 people die from rabies each year.

More bad news about chronic wasting disease

Wednesday, January 25, 2012

CWD infected deer (NY Dept. of Env. Conservation)

Chronic wasting disease has now spread to wild, free-ranging white-tailed deer in Missouri. This comes just two years after CWD first showed up in the state at a private captive-deer facility.

From the Associated Press:

JEFFERSON CITY, Mo. (AP) — Missouri conservation officials say two free-range deer have tested positive for chronic wasting disease.
The Department of Conservation said Tuesday the two positive test results came from 1,077 tissue samples taken from deer killed in north-central Missouri. Both positive test results were from adult bucks taken in Macon County.
Chronic wasting disease is a neurological disorder that afflicts deer, elk and moose. It’s contagious among those animals, but experts say there’s no evidence that it poses a risk to humans, other livestock, pets or food safety.
The department says it plans get more tissue samples for testing from the area where the two infected deer were harvested. The agency says it appeared the disease was restricted to that area.

Lyme-carrying tick population rises

Thursday, January 19, 2012

Deer tick (AP photo)

If it’s happening in Ohio, chances are it’s happening — or has already happened — here in West Virginia. From the Associated Press:

COLUMBUS, Ohio (AP) — The state is seeing a shocking increase in the number of deer ticks that can carry Lyme disease, prompting concerns that it will lead to more cases of the illness, insect experts said Wednesday.
A group that includes the state health and wildlife agencies is working to sort out what risks may be posed by last year’s spike in confirmed deer ticks, also known as black-legged ticks, and how best to spread the word and keep people safe. The experts believe the higher numbers are a sign of tick population growth, not simply the result of more active searching last year.
It’s unclear what spurred the increase, though researchers suspect one factor is favorable weather conditions that helped more of the tick population survive and thrive.
“We got kind of a red flag, a warning that something really unusual was happening with the tick population, and maybe we’re out front of it a little bit” because the number of human cases of Lyme disease in Ohio hasn’t shown a matching spike, said Glen Needham, an associate professor of entomology at Ohio State University who has studied the ticks and worked with the state to identify them.
More than 1,800 black-legged ticks were found on deer heads collected from hunters last year, and 183 more submitted to the state for identification were confirmed, compared with 29 found on deer heads the year before and 45 that were submitted and confirmed, according to the Ohio Department of Health. The ticks, some carrying Lyme disease, have especially shown up in eastern and southern Ohio.
The deer tick was first found in Ohio in 1989, and in the following two decades, only about 50 of the thousands of ticks found in the state were identified as black-legged ticks, state public health entomologist Richard Gary said. In 2010, 45 deer ticks were confirmed, giving officials their first indication of a change.
“We think that they’ve probably been there for a while, just in numbers too low to be detected, and that’s what’s changing,” Gary said.
One of the problems with deer ticks is that they can be active throughout most of the year. And, unlike other ticks that are more finicky eaters, they’ll feed on a variety of creatures found throughout Ohio, including deer, mice, birds and lizards — and sometimes humans, Needham said.
Bites from infected ticks can lead to rashes, fevers and joint pains. If left untreated, damage to the heart and the nervous system can result.
So far, there’s no parallel spike in cases of the disease in Ohio, which gets 40 to 50 cases annually, Gary said. There were 37 cases in 2010 and at least 51 last year.
As researchers and state officials wait to see if that changes for this year, they are trying to educate physicians, veterinarians, public health workers and residents about avoiding and identifying the ticks. They also plan to seek information from neighboring states including Pennsylvania, which has a higher incidence of Lyme disease, a bacterial infection.
It’s familiar territory for Needham, who has been teaching workshops about ticks for decades and wondered as he approached retirement age whether Ohio would ever see more of them. He said residents who find a tick they consider suspicious should contact their county health departments or local extension offices.

Anatomy of a deer die-off

Monday, January 9, 2012

Wildlife officials in the plains states are dealing now with what West Virginia officials dealt with two years ago — an outbreak of epizootic hemorrhagic disease, also known as EHD or “blue tongue.” From the Associated Press:

BILLINGS, Mont. (AP) — White-tailed deer populations in parts of eastern Montana and elsewhere in the Northern Plains could take years to recover from a devastating disease that killed thousands of the animals in recent months, wildlife officials and hunting outfitters said.
In northeast Montana, officials said 90 percent or more of whitetail have been killed along a 100-mile stretch of the Milk River from Malta to east of Glasgow. Whitetail deaths also have been reported along the Missouri and Yellowstone rivers in western North Dakota and eastern Montana and scattered sites in Wyoming, South Dakota and eastern Kansas.
The deaths are being attributed to an outbreak of epizootic hemorrhagic disease, or EHD. Transmitted by biting midges, EHD causes internal bleeding that can kill infected animals within just a few days.
“I’ve been here 21 years and it was worse than any of us here have seen,” said Pat Gunderson, the Glasgow-based regional supervisor for Montana Fish, Wildlife and Parks. “Right now it’s going to take a few years to get things back to even a moderate population.”
In North Dakota, state wildlife chief Randy Kreil described the outbreak as the most extensive and deadly in two decades.
Mule deer, bighorn sheep, elk and pronghorn also are susceptible to EHD, but it is particularly damaging to whitetail herds, animal health experts said. Livestock can be infected but typically show few symptoms.
Researchers say the virus that causes EHD does not infect people and there is no risk of eating or handling infected deer,
More precise estimates of the number of whitetail killed are expected after agencies conduct winter population counts and survey fall hunter success.
Periodic outbreaks of EHD occur in whitetail herds across the country. Wildlife officials say the outbreak in the Northern Plains stands out for the high number of deaths and wide area affected.
Animal health experts suspect it was triggered by an exceptionally wet spring that led to lots of muddy breeding habitat for the biting midges that carry the disease. A warm fall meant the midges lingered and continued transmitting EHD to deer.
The outbreak followed a harsh winter that already had knocked down deer numbers across the region.
In response to those winter deaths, Gunderson said the number of hunting tags offered in northeast Montana was reduced from 5,000 to 4,000. After the EHD outbreak began in late summer, sales of another 2,000 tags were suspended.
In western North Dakota, 1,500 licenses were suspended and the state offered refunds for deer tags already sold. More than 630 people took advantage of the refunds, said Randy Meissner, license manager for North Dakota Game and Fish.
Hunting outfitter Eric Albus in Hinsdale, Mont., said his business ran one archery hunting trip along the Milk River this fall, compared to 40 or 50 hunts in prior years.
“It was horrendous,” Albus said, “especially when you couple it with the fact that we lost 40 to 45 percent of our whitetail in the winter.”
To satisfy his customers, Albus said he leased alternate properties to hunt on that were up to 350 miles away from Hinsdale.
In southern states where deer have a history of exposure to EHD, death rates from the disease are relatively low, said David Stallknecht with the Southeastern Cooperative Wildlife Disease Study, which has been tracking EHD for more than 30 years.
Whitetail in northern states are more likely to die because they lack the antibodies from previous exposures needed to help fight off the disease, said Stallknecht, a professor in the College of Veterinary Medicine at the University of Georgia.
He said a better picture of the outbreak will come later this year, after state wildlife agencies from across the country submit annual animal mortality data to the Southeastern Cooperative
Notwithstanding the disease’s economic impacts to the region’s hunting industry, Gunderson said the loss of so many deer along the Milk and Missouri rivers could have an upside.
Along some stretches of the river, a combination of animal grazing and ice jams scraping the riverbank each winter have prevented cottonwood trees from regenerating for decades.
After the region’s record spring floods allowed seedlings to take root high up on the banks, where they are more protected, Gunderson said a new crop of trees could thrive with so many whitetail gone.
“We won’t have the tremendous deer population browsing on them, so hopefully we’ll get the cottonwoods along these river bottoms that will take us through the next 100 years,” he said.

Deer disease spreads again

Wednesday, January 4, 2012

CWD infected deer (NY Dept. of Env. Conservation)

Sigh. Chronic wasting disease shows up in yet another place. From the Associated Press:

LINCOLN, Neb. (AP) — The Nebraska Game and Parks Commission says chronic wasting disease has been found in three central Nebraska counties for the first time.
The commission says a total of 26 deer carcasses tested positive for the disease in Buffalo, Custer and Holt counties during the November firearm hunting season. Nearly 1,600 lymph node samples were taken. One mule deer carcass in Garden County tested positive.
In 2010, 51 positives were found in the more than 3,600 test samples.
The 2011 testing was curtailed by budget issues, so it was concentrated on central Nebraska, which the commission says is the leading edge of the disease as it spreads from west to east.
The disease affects deer and elk and is always fatal. No human cases have ever been recorded.

Officials fear bighorn sheep die-off

Wednesday, January 4, 2012

U.S. Fish and Wildlife Service photo

Gee, I didn’t even know bighorn sheep could get pneumonia.

From the Associated Press:

LIVINGSTON, Mont. (AP) — Wildlife officials are monitoring bighorn sheep from a southern Park County herd that was hit by pneumonia to gauge the risk of a large-scale die-off of the animals.
Montana Fish, Wildlife and Parks biologist Karen Loveless told the Livingston Enterprise that five sheep from the afflicted herd near Cinnabar Mountain have been killed since early December.
Loveless says three of the sheep carried a strain of pneumonia associated with a 2010 outbreak that killed about 600 bighorn sheep in western Montana.
About 80 animals from the Cinnabar herd recently dispersed into smaller groups. One bighorn lamb with pneumonia has been found on Mt. Everts, just inside Yellowstone National Park.
Loveless says it’s possible the disease was transmitted to the wild animals by infected domestic sheep.

It’s interesting that the disease might have spread from domestic sheep to the wild bighorns. Farmers and ranchers complain incessantly about brucellosis and other diseases that can spread from wild animals to domestic stock. Should hunters now complain about the presence of domestic animals? Just sayin’.

Researchers take aim at lethal bat disease

Sunday, January 1, 2012

Bats with white nose syndrome

White nose syndrome is a problem throughout the eastern half of the United States, so a research project being conducted in Tennessee could have a significant impact here in West Virginia and northward toward New York state, where the disease is devastating native bat populations.

From the Associated Press:

JELLICO, Tenn. (AP) — Researchers with the University of Tennessee and Pennsylvania’s Bucknell University recently visited Tennessee caves to collect 100 little brown bats for research aimed at combating white nose syndrome.
The fast-spreading fungal disease infects bats while they hibernate and has killed more than one million bats across the northeastern U.S.
“One of the issues for white nose syndrome research is that a lot of the work has to be done in labs where they can control the variables, so they have to have bats,” Cory Holliday, cave specialist for The Nature Conservancy told the Knoxville News Sentinel.  “In the Northeast, they’re literally running out of bats due to the epidemic, so they come here.”
Tennessee is home to 15 bat species, three of which are known to be infected with white nose syndrome, but so far the disease has not spread across the state as rapidly as was feared.
Amanda Janicki, a graduate student in the UT Department of Ecology & Evolutionary Biology was on the recent research expedition. She injected some of the bats with implants of antifungal medicine. Those bats were then rushed to Bucknell University, where they’d be infected with the white nose syndrome fungus.
“This is a clinical trial to see if it works,” Souza said. “If it comes down to species survival, we could bring the bats into captivity and treat them with the implants, which involves less handling than if we gave them daily injections. It’s having to treat bats on an individual basis, but at this point we’re willing to try anything.”