OREGON STATE UNIVERSITY

college of veterinary medicine

McDonald Forest open, not found to pose any special risk to pets

CORVALLIS, Ore. – After further evaluation, officials at Oregon State University say there is no apparent geographic connection that would link dogs that had recently become ill with visitation to the McDonald Forest area north of Corvallis, and the area remains open for public use as usual.

Veterinarians and researchers from the OSU College of Veterinary Medicine, Veterinary Diagnostic Laboratory, College of Forestry and Research Forests have examined these cases, following public reports that one or more dogs may have become ill after drinking from water in the area.

Upon closer examination of all cases, including communication with pet owners, they found no geographic link between the cases, no consistent symptoms of ill health and no way to attribute illnesses to any known toxin.

“After reviewing these cases, we could find no evidence that suggests something in McDonald Forest is posing a special risk to animals,” said Jana Gordon, an assistant professor in the OSU College of Veterinary Medicine and expert in small animal internal medicine. “In light of that, the forest will remain open for public use and pets will continue to be welcome there.”

OSU officials said that pet owners should continue to take ordinary precautions as they would anytime they bring pets into a forest or wildlife area. Pets are at risk of injury from falls, encounters with wildlife, or consuming unclean water, plants, animals and animal matter that may cause illness. Pets that aren’t physically fit or have some medical conditions may also be more susceptible to exercise or heat-induced illness.

Routine precautions when visiting a forested or wild land area should include:

  • Pets should be kept on a leash and under supervision at all times;
  • Encounters between pets and other wildlife should be avoided;
  • Water should be carried in for the pets, or water purification systems used;
  • A veterinarian should be consulted if a pet has any medical conditions, exercise restrictions or other precautions;
  • A pet should be kept well-hydrated and cool when exercising in warm weather.

If a pet shows any signs of illness following outdoor activities, a veterinarian should be contacted immediately.

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Jana Gordon, 541-737-4808

OSU treats horse with Equine Herpes Virus (EHV-1)

CORVALLIS, Ore. – Oregon State University this week has diagnosed a horse with the neurologic form of Equine Herpes Virus 1 (EHV-1), a naturally occurring virus that can cause serious illness in horses when activated.

The horse is isolated at the Lois Bates Acheson Veterinary Teaching Hospital, and all activities and services in the College of Veterinary Medicine are continuing.

The Oregon Department of Agriculture has quarantined the property where the affected horse was housed in Marion County.

No other horses that attended these events have shown clinical signs of EHV-1. Owners of horses that attended these events are encouraged to monitor their horses for any signs of respiratory or neurologic disease. EHV-1 is not transmissible to people.

“This is not the neurotropic or mutated form of the virus, which can really cause problems,” said John Schlipf, a large animal internal medicine specialist with the OSU College of Veterinary Medicine. “This form of EHV-1 can still have serious consequences.”

Schlipf said that clinical signs of the neurologic form of EHV-1 often begin with the hind limbs and include:

  • Uncoordinated, stumbling movements;
  • An unusual gait;
  • A weak tail tone;
  • Difficulty urinating, and dribbling of urine;
  • Nasal discharge, frequently accompanied by a fever.

The Oregon Department of Agriculture recommends horses that attended the Albany or Eugene events avoid contact with other horses and have their temperatures monitored twice daily. Temperatures over 101.5 degrees may indicate illness.

Horses with signs listed above should be isolated from other animals, and owners should contact their veterinarians immediately. EHV-1 can also affect alpacas and llamas, Schlipf said.

EHV-1 can cause abortions in animals, thus pregnant mares should not co-mingle with horses returning from those shows.

“Horse owners should be aware that although EHV-1 is not transmissible to humans, people can spread the virus on their hands and clothing if in contact with an infected horse,” Schlipf said.

Additional information regarding Equine Herpes Virus and biosecurity recommendations is available from the American Association of Equine Practitioners: http://www.aaep.org/info/horse-health?publication=753.

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 John Schlipf, 541-737-6962;  john.schlipf@oregonstate.edu

OSU names Susan Tornquist dean of veterinary medicine

CORVALLIS, Ore. – Susan Tornquist, who has been interim dean of the College of Veterinary Medicine  at Oregon State University since October of 2013, has been named dean of the college.

Tornquist has been on the faculty at Oregon State since 1996 and previously was associate dean of student and academic affairs in the college, where she also is a professor of clinical pathology.

“Sue Tornquist has been a very effective leader for the College of Veterinary Medicine over the past 17 months, and has demonstrated that she has the very best interests of the college at heart and the skill set for enhancing the college’s education, clinical services, research and outreach,” said Sabah Randhawa, OSU’s provost and executive vice president.

While Tornquist was interim dean, the college surpassed its fund-raising goal of $47 million through The Campaign for OSU; again received full accreditation in 2014 from the American Veterinary Medicine Association; launched a new graduate program in comparative health sciences; and saw the class of 2014 achieve a 100 percent pass rate for the national board exam for veterinarians.

Tornquist said the OSU College of Veterinary Medicine has a bright future.

“We are looking forward to great opportunities for research and strengthened clinical capabilities in oncology and infectious diseases and continued collaboration with Oregon Humane Society in providing experiential learning opportunities for veterinary students while providing needed veterinary services for animals in need,” Tornquist said.

“There are also new opportunities and initiatives in One Health for undergraduate students,” she added. “We hope to see expansion in both instructional and clinical facilities in the next five years.”

As associate dean, Tornquist helped the college grow its enrollment, coordinate student internships, build partnerships with the Oregon Humane Society and other organizations, and make student experiential learning a hallmark of the program.

Tornquist received her veterinary medical degree from Colorado State University and her doctorate in veterinary pathology from Washington State University. Her research interests have focused on immune responses to infectious and metabolic diseases in animals, particularly llama and alpacas.

Before coming to Oregon State, she was on the veterinary medicine faculty at Washington State University from 1990-96. She also has been a research associate in New Mexico’s Veterinary Diagnostic Services office; an associate veterinarian in private practice in New Mexico; and a teaching and research assistant at the University of New Mexico.

Tornquist succeeds Cyril Clarke as dean, who resigned in 2013 to become dean of the Virginia-Maryland Regional College of Veterinary Medicine.

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Sabah Randhawa, 541-737-2111, Sabah.randhawa@oregonstate.edu

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Veterinary hospital resuming normal operation after cases of equine influenza

CORVALLIS, Ore. – The Lois Bates Acheson Veterinary Teaching Hospital at Oregon State University will resume normal operations on Thursday, Dec. 4, following several cases of equine influenza that for the past week had kept it from accepting horses for anything but emergency services.

There are three remaining horses that still have the infection but are being housed in an isolation unit. They pose no risk to the general hospital operation, officials say, where no horses are now testing positive for the virus.

Equine influenza is a highly contagious respiratory disease in horses that usually isn’t fatal, but is a particular concern to foals and pregnant horses, since it can cause abortion. The original source of the infection appears to be a horse admitted to the hospital.

All horse stalls in the Large Animal Hospital have been disinfected and left empty for an adequate time to kill any remaining flu virus in a dry environment.

“We’d like to thank all of our clients for their patience and cooperation,” said Ron Mandsager, interim associate director of the hospital. “Equine influenza is endemic in the U.S. and sometimes these situations occur, and we had to take the necessary precautions to protect the health of our animals.”

Equine influenza is not transferable to humans or other animal species, but can spread rapidly among horses and other equines. It is the most common contagious respiratory pathogen for horses and most animals fully recover. However, young, elderly or pregnant animals are more at-risk for viral diseases such as equine influenza.

Incidents such as this, hospital officials said, should remind all horse owners to vaccinate their animals, practice good biosecurity, and monitor horses closely when they are in contact with other horses during and after events like fairs, competitions and trail rides.

The first clinical sign of this disease in horses is typically a fever, followed by cough, nasal discharge and lethargy. Horses with a fever of greater than 102.5 degrees should be seen by a veterinarian.

Anyone who has concerns about the health of their animals should contact their veterinarian or the Lois Bates Acheson Veterinary Teaching Hospital at OSU, at 541-737-2858 or http://vetmed.oregonstate.edu/

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Ron E. Mandsager, 541-737-6440

Veterinary hospital managing cases of equine influenza

CORVALLIS, Ore. – The Veterinary Teaching Hospital at Oregon State University will not accept horses for anything but emergency services until at least Tuesday, Dec. 2, due to three diagnosed cases of equine influenza virus at the hospital.

Three horses are known to be infected with this virus, and others could be, officials say. The virus is a highly contagious respiratory disease in horses that typically is not fatal, but is a particular concern to foals and pregnant mares.

Other than equine species, the situation will not affect the care of any other small or large animals at the hospital.

The three infected horses have been placed in isolation and are being monitored for signs of disease. Officials wish to emphasize that this is equine influenza virus, not equine herpes virus-1, a more serious disease that is often confused with the influenza virus.

Equine influenza is not transferable to humans or other animal species, but can spread rapidly among horses and other equine species. It is the most common contagious respiratory pathogen of horses, and most infected horses show mild clinical signs from which they fully recover. However, young, elderly or pregnant animals are more vulnerable to viral diseases such as equine influenza, which can cause abortion in pregnant mares.

“Equine influenza virus is endemic in the U.S., and outbreak situations can occur intermittently in groups of horses,” said Erica McKenzie, an internal medicine specialist at the Lois Bates Acheson Veterinary Teaching Hospital in OSU’s College of Veterinary Medicine. “We’ve acted quickly to quarantine infected horses, so that hopefully no additional horses will become infected.”

The Large Animal Internal Medicine and Surgery Services at OSU are working with the state veterinarian’s office to inform veterinarians and horse owners about the disease.

The first clinical sign of influenza in horses is typically a fever, followed by cough, nasal discharge and lethargy. Horses with a rectal temperature of greater than 102.5 degrees, cough or nasal discharge should be evaluated by a veterinarian.

Infected horses can “shed” or transmit the virus for up to 10 days after incubation, although the peak of shedding occurs three to five days after infection. Horses that show signs of the disease should be isolated from other horses for 10 days after clinical signs first appear. Testing of nasal swab samples can be used to identify influenza infection in horses and to determine when horses infected with the virus are no longer a risk to others.

The influenza virus is easily killed by a variety of disinfectants, and thorough cleaning of stalls and equipment can help prevent the virus from spreading. Vaccination of horses during an outbreak in a training facility or barn can be beneficial, and should be performed in consultation with a veterinarian, since it may have implications for influenza test results.

Anyone with concerns about the health of their animals should contact their veterinarian or the Lois Bates Acheson Veterinary Teaching Hospital at OSU, at 541-737-2858 or http://vetmed.oregonstate.edu/

The OSU equine facility typically treats 5 to 15 horses at a time. All horses currently hospitalized will be monitored closely and repeatedly tested for equine influenza prior to discharge.

 

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Erica McKenzie, 541-737-6842

Smithsonian mobile exhibit on May 19 explores the human-animal bond

 

CORVALLIS, Ore. - The special relationship between humans and animals is explored in a new mobile exhibit from the Smithsonian Institution, which will be open in the Reser Stadium parking lot at Oregon State University on Monday, May 19.

“Animal Connections: Our Journey Together,” a custom-built exhibition housed on an 18-wheel truck that expands into 1,000 square feet of space, is traveling throughout the United States. It’s free, and will be open to the public in Corvallis from 9:30 a.m. to 4:30 p.m.

“Animal Connections” marks the 150th anniversary of the American Veterinary Medical Association, and the exhibit is made possible through the support of founding sponsor Zoetis, Inc., and the AVMA.

A video of the exhibit is available online, at animalconnections.com

The exhibition focuses on animals in the home, on the farm, at the zoo, in the wild and at the veterinary clinic. Visitors are offered a variety of ways to learn through informative displays, dynamic videos and interactive experiences. The exhibit also highlights the roles veterinarians play in the health of animals.

“At the AVMF, we are committed to advancing the well-being and medical care of animals,” said Michael Cathey, AVMF executive director. “This exhibition will not only help inspire the next generation of veterinarians, but improve current animal care through a better understanding of the role animals and veterinarians play in our lives.”

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OSU Pet Day planned for May 3

CORVALLIS, Ore. - Oregon State University will hold its 27th annual Pet Day on Saturday, May 3, when the College of Veterinary Medicine opens its doors for tours, booths, displays and a number of family-oriented events.

Pets are welcome at this always-popular event, on a leash.

Pet Day is designed as a way for the College of Veterinary Medicine to give back to the community, and help Oregon residents understand its operations and legacy of public service. It usually attracts 3,000-4,000 visitors, many who bring their pets. The child-friendly event, which will be held rain or shine, is created, organized, and staffed by students.

Vendors and volunteers from organizations will staff booths at the event and provide information on animal health and wellness, nutrition, adoption and therapy.  Many also provide free samples and other resources, spanning the four-legged gamut from pet food to shelter medicine.

Among the returning activities will be dog agility demonstrations, live reptiles, a petting zoo, tours of the Veterinary Teaching Hospital, a pet costume contest, a dog frisbee show, a cat photo contest, and more. Food booths are also available.

Participants and their pets may join the Fun Run/Walk event at 9 a.m.; online preregistration for that event is requested by April 18. 

Pet Day runs from 10 a.m. to 4 p.m. at Magruder Hall, located on 30th Street in Corvallis just south of Washington Way, and adjacent to the athletic department’s Truax Indoor Center. Admittance and most activities are free, but there is a small charge for a few of the events.

More detailed information on the various events and registration for the fun run/walk is available online at http://vetmed.oregonstate.edu/pet-day

Pet Day is sponsored by the College of Veterinary Medicine, and supported by Banfield Pet Hospital, Hill’s Pet Nutrition, Zoetis, Nestle Purina Pet Care Co., the Oregon Animal Health Foundation and the Student Chapter of the American Veterinary Medical Association.

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Veterinary hospital resuming normal operation after equine influenza outbreak

CORVALLIS, Ore. – The Veterinary Teaching Hospital at Oregon State University has resumed normal operations following an outbreak of equine influenza, which for the past two weeks kept it from accepting horses for anything but emergency services.

There were six confirmed cases of equine influenza, a highly contagious respiratory disease in horses that usually isn’t fatal, but is a particular concern to foals and pregnant horses, since it can cause abortion. The original source of the infection appears to be a horse admitted to the hospital. Four horses are still shedding the virus but are now contained in an isolation facility, and all are expected to make a full recovery.

All horses in the Large Animal Hospital are testing negative for the virus, and stalls have been disinfected, then left empty for at least 48 hours, an adequate time to kill any remaining flu virus in a dry environment.

“We’d like to thank all of our clients for their patience and cooperation while we worked through this issue,” said Ron Mandsager, interim associate director of the Lois Bates Acheson Veterinary Teaching Hospital. “The most important thing is to protect the health of all our animals. Unfortunately, equine influenza is endemic in the U.S. and sometimes these situations occur.”

Equine influenza is not transferable to humans or other animal species, but can spread rapidly among horses and other equines. It is the most common contagious respiratory pathogen for horses and most animals fully recover. However, young, elderly or pregnant animals are more at-risk for viral diseases such as equine influenza.

“The incident should be a reminder to all horse owners,” said Keith Poulsen, associate professor of large animal internal medicine. “It’s important to vaccinate their animals, practice good biosecurity, and monitor horses closely when they are in contact with other horses during and after events like fairs, competitions and trail rides.”

The first clinical sign of this disease in horses is typically a fever, followed by cough, nasal discharge and lethargy. Horses with a fever of greater than 102.5 degrees should be seen by a veterinarian.

Anyone who has concerns about the health of their animals should contact their veterinarian or the Lois Bates Acheson Veterinary Teaching Hospital at OSU, at 541-737-2858 or http://vetmed.oregonstate.edu/

Hospital officials say they plan to investigate the impact the outbreak has had on hospital operations and the local equine community.

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Keith Poulsen, 541-737-6939

Cognitive decline with age is normal, routine – but not inevitable

CORVALLIS, Ore. – If you forget where you put your car keys and you can’t seem to remember things as well as you used to, the problem may well be with the GluN2B subunits in your NMDA receptors.

And don’t be surprised if by tomorrow you can’t remember the name of those darned subunits.

They help you remember things, but you’ve been losing them almost since the day you were born, and it’s only going to get worse. An old adult may have only half as many of them as a younger person.

Research on these biochemical processes in the Linus Pauling Institute at Oregon State University is making it clear that cognitive decline with age is a natural part of life, and scientists are tracking the problem down to highly specific components of the brain. Separate from some more serious problems like dementia and Alzheimer’s disease, virtually everyone loses memory-making and cognitive abilities as they age. The process is well under way by the age of 40 and picks up speed after that.

But of considerable interest: It may not have to be that way.

“These are biological processes, and once we fully understand what is going on, we may be able to slow or prevent it,” said Kathy Magnusson, a neuroscientist in the OSU Department of Biomedical Sciences, College of Veterinary Medicine, and professor in the Linus Pauling Institute. “There may be ways to influence it with diet, health habits, continued mental activity or even drugs.”

The processes are complex. In a study just published in the Journal of Neuroscience, researchers found that one protein that stabilizes receptors in a young animal – a good thing conducive to learning and memory – can have just the opposite effect if there’s too much of it in an older animal.

But complexity aside, progress is being made. In recent research, supported by the National Institutes of Health, OSU scientists used a genetic therapy in laboratory mice, in which a virus helped carry complementary DNA into appropriate cells and restored some GluN2B subunits. Tests showed that it helped mice improve their memory and cognitive ability.

The NMDA receptor has been known of for decades, Magnusson said. It plays a role in memory and learning but isn’t active all the time – it takes a fairly strong stimulus of some type to turn it on and allow you to remember something. The routine of getting dressed in the morning is ignored and quickly lost to the fog of time, but the day you had an auto accident earns a permanent etching in your memory.

Within the NMDA receptor are various subunits, and Magnusson said that research keeps pointing back to the GluN2B subunit as one of the most important. Infants and children have lots of them, and as a result are like a sponge in soaking up memories and learning new things. But they gradually dwindle in number with age, and it also appears the ones that are left work less efficiently.

“You can still learn new things and make new memories when you are older, but it’s not as easy,” Magnusson said. “Fewer messages get through, fewer connections get made, and your brain has to work harder.”

Until more specific help is available, she said, some of the best advice for maintaining cognitive function is to keep using your brain. Break old habits, do things different ways. Get physical exercise, maintain a good diet and ensure social interaction. Such activities help keep these “subunits” active and functioning.

Gene therapy such as that already used in mice would probably be a last choice for humans, rather than a first option, Magnusson said. Dietary or drug options would be explored first.

“The one thing that does seem fairly clear is that cognitive decline is not inevitable,” she said. “It’s biological, we’re finding out why it happens, and it appears there are ways we might be able to slow or stop it, perhaps repair the NMDA receptors. If we can determine how to do that without harm, we will.”

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Kathy Magnusson, 541-737-6923

OSU names Susan Tornquist interim dean of veterinary medicine

CORVALLIS, Ore. – Susan Tornquist, associate dean in the College of Veterinary Medicine at Oregon State University, has been named interim dean of the college.

She succeeds Cyril Clarke, who will become dean of the Virginia-Maryland Regional College of Veterinary Medicine effective Oct. 1.

Tornquist has been on the faculty at Oregon State since 1996, most recently as associate dean of student and academic affairs in OSU’s College of Veterinary Medicine, where she also is a professor of clinical pathology. Her research interests have focused on immune responses to infectious and metabolic diseases in animals, particularly llama and alpacas.

As associate dean Tornquist has helped the college grow its enrollment, coordinate student internships, build partnerships with the Oregon Humane Society and other organizations, and make student experiential learning a hallmark of the program.

Tornquist received her veterinary medical degree from Colorado State University and her doctorate in veterinary pathology from Washington State University.

Sabah Randhawa, OSU provost and executive vice president, said Tornquist will transition into the role of interim dean over the next several weeks. He has begun a national search to fill Clarke’s position.

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Sabah Randhawa, 541-737-2111