Immune System


Handling of Vaccines for Horses

April 01, 2010

It's spring: the time of year when we are in the throes of boostering horse immunizations, with the intent to maximize immunity before mosquito season and competition campaigns get into full swing. Many equine vaccines are credited with inferring... Read More


Annual Vaccinations for Horses

March 22, 2010

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Immunology of Foals: Environmental Effects on Immune Maturation

January 20, 2010

Newborn foals can be susceptible to many viral and bacterial infections. One example is the unique susceptibility of young foals to Rhodococcus equi, a common cause of bronchopneumonia.

Foals' increased susceptibility appe... Read More


Aging Horses' Immune Systems Reviewed

December 11, 2009

Lymphoid cells are found to be weaker in older horses, thus, causing weaker immune systems as they age.... Read More


Understanding Antibody Titers

October 20, 2009

One of the most often used and least understood immunological terms is antibody titer. But what does titer mean, and how can this information be used in assessing the immune status of a horse?

A titer is defined as the... Read More


Common Variable Immunodeficiency in Horses, ACVIM 2009

August 27, 2009

Common variable immunodeficiency is a rare, but serious disease in adult horses that often leads to hospitalization, said Maria Julia Bevilaqua Felippe Flaminio, DVM, MS, PhD, Dipl. ACVIM, who presented research on the topic at the American... Read More


Diarrhea Prevention in Hospitalized Horses a Delicate Bacterial Balance

August 20, 2009

Diarrhea acquired while staying in a hospital, termed nosocomial diarrhea, is an unfortunate risk when hospitalizing a horse, but there are steps owners and veterinarians can take to help prevent disease.

There are many reasons wh... Read More


Old Horse Immune Function: Is Gene Length Key?

July 16, 2009

Is it possible genes that become shorter as horses age could be the key to how well that animal's immune system works?

The availability of horses 20 years old and older on the University of Kentucky's Maine Chance Farm and on farms in the... Read More


Vets Discuss Infectious Neurologic Diseases, AAEP 2008

May 10, 2009

What are the most important neurologic problems veterinarians face throughout the year? That's the question Debra Sellon, DVM, PhD, Dipl. ACVIM, associate dean of the Graduate School at Washington State University and professor of equine... Read More


Building Immunity

May 01, 2009

The foal’s immune system is almost a blank slate at birth; researchers are figuring out how to best protect horses as they grow.

The process of building immunity against disease-causing pathogens for a horse begins with a... Read More


Equine Herpesvirus Immunity

October 24, 2008

Paul Lunn discusses immunity's role in the neurologic form of equine herpesvirus-1.... Read More


Aging Horses by their…Telomeres?

August 09, 2008

To guess a horse's age you can look at his teeth ... or the length of his telomeres and his immune system function, according to researchers with the University of Kentucky's Gluck Equine Research Center.

Scientists studying the... Read More


New Administrative Team Leading Colorado State's Veterinary Teaching Hospital

July 07, 2008

The James L. Voss Veterinary Teaching Hospital (VTH) has two new leaders at the helm, though the names may be familiar to most people associated with the College of Veterinary Medicine and Biomedical Sciences. Dean Hendrickson, DVM, MS,... Read More


Vaccines for Horses: Defending Against Disease

April 04, 2008

Vaccines have changed the way we manage our horses, and how long they can live.... Read More


Antibody Titers

November 01, 2007

You might have heard your veterinarian say, "Let's run a titer on him," when referring to your horse and whether he's protected against disease, or to figure out what might be causing particular clinical signs. What exactly does "titer" mean?... Read More


Genome Study Confirms Effect of Excess Exercise on Immune System

July 03, 2007

While moderate exercise has been shown to enhance the immune system, a recent study analyzing gene expression in the lymphocytes (a type of white blood cell that plays a central role in the immune system) of endurance horses has demonstrated tha... Read More



March 01, 2007

The horse's immune system is a window to its world. The biochemical analysis of blood components can give the veterinarian valuable information about disease exposure and immune responses. When a horse is exposed to an antigen (a disease-causing... Read More


U.S. Equine Economic Impact Study Released

August 01, 2005

The horse industry in the United States contributes $39 billion in direct economic impact and generates about $102 billion in total spending, according to a detailed economic impact study released June 28.

"The Economic Impact of the Horse... Read More


Morris Animal Foundation Hosts Equine Consortium Summit

June 28, 2005

Morris Animal Foundation, the world's largest private funding source for companion animal and wildlife health studies, gathered some of the nation's top authorities in equine research to pinpoint equine health priorities and address the... Read More


Immunostimulant Therapy (AAEP 2004)

February 14, 2005

The mechanism of action of non-specific immunostimulation is induction of macrophages to produce proinflammatory cytokines that drive a T-1-based (helper cells) immune system response. Immunostimulation therapy may not be effective in patients with ... Read More


Transport and the Immune System

February 01, 2005

In a study published in the Equine Veterinary Journal investigating the effects of long-term transport on horses, Carolyn Stull, DVM, showed measurable changes in immunological status. She also found the immune systems of transported... Read More


Fighting Invaders

January 01, 2005

The immune systems of humans and horses are what keep us alive. Without a properly functioning immune system, disease would run rampant, with serious illness and death being the ultimate outcome. Unfortunately, it is not a simple system that... Read More


Immunity Through Nutrition

January 01, 2005

If your performance horse does well on a balanced diet, can he do better with some extra, immune-boosting nutrients? What about young horses and aging horses, ill horses and healthy horses, working horses and lightly ridden horses?

For sure... Read More


Linking Chronic Laminitis to Immunologic Hyperreactivity

February 01, 2004

The pathogenesis of chronic laminitis remains unclear. There is growing evidence, however, of a link between this condition and the development of certain systemic diseases, such as kidney disease, that involve small blood vessel damage. There... Read More


Hyperimmune Plasma for WNV Horses

September 10, 2003

Veterinarians have been using an antibody product to treat West Nile virus (WNV) clinical signs, but its use for this purpose is currently off-label (not approved by the USDA). Currently, the hyperimmune plasma product HiGamm-Equi, by Lake... Read More