EHV-1 Outbreak At California Show Grounds Sees Six Positives, One Death

On July 25, a 6-year-old Warmblood mare in Sonoma County, CA, tested positive for equine herpesvirus (EHV-1), according to reporting from the California Department of Food and Agriculture. The show horse had been stabled at the Sonoma Horse Park in Petaluma, Calif., prior to her positive test. Though the mare was vaccinated, she was euthanized after becoming recumbent and unable to rise.

Managers of the horse show the mare attended notified all attendees, asking them to take temperatures of horses that had attended the show twice daily and quarantine any horses returning from the show for at least seven days. On the show grounds, 19 horses from the affected mare's barn were removed and quarantined at their home farm; the 18 horses left at the home facility had temperatures taken twice daily and the farm implemented enhanced biosecurity measures.

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Six horses at the premises tested positive for EHV-1 and began displaying fever and/or limb edema. One horse, a 15-year-old Warmblood mare, began displaying neurologic symptoms and was moved to isolation at a veterinary hospital for care. A 5-year-old Warmblood gelding that was stabled at the horse show with the euthanized mare tested positive for EHV-1 on July 30 and was isolated at the index premises.

There were seven confirmed cases of EHV-1: two were non-neurologic EHV-1 cases at the showgrounds, a 5-year-old Warmblood gelding and a 14-year-old pony mare.  one horse thus far has been euthanized.

Read more at the EDCC.

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Study: Horses And Chronic Hepatitis

The most common cause of acute viral hepatitis in horses is serum hepatitis, also called Theiler's disease, which causes liver atrophy and necrosis. Worldwide outbreaks have been reported in conjunction with the use of equine-derived blood products, including tetanus antitoxin, botulinum antitoxin, equine plasma, Streptococcus equi antiserum and pregnant mare's serum.

Between 1.4 and 18 percent of horses receiving an equine-derived product have reported a sudden or severe hepatitis infection. A novel parvovirus dubbed an equine parvovirus-hepatitis (EqPVH) has been identified as the cause of Thieler's disease in horse serum samples the United States, Canada, New Zealand, Italy, and Germany, indicating that the parvovirus occurs worldwide.

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Interestingly, EqPV-H has also been found in horses with Thieler's disease that did not receive biological equine serums.

Dr. Birthe Reinecke, postdoctoral fellow with the Institute of Experimental Virology, and a team of scientists created a study to determine if chronic EqPV-H infection is a possibility and if cross-species infection can occur. The team used 124 German horses for a five-year study as well as 318 human serum samples: 147 samples were from humans with no horse contact and 171 samples were from humans who had contact with horses for their work. They also used 494 donkey serum samples from Germany, Italy and Bulgaria, and archived samples from zebras.

Most horses used in the study were EqPV-H negative, but some has virus in their blood. The team determined that horses can be infected with the disease for up to five years, even if they show no clinical signs of the disease. About 1 percent of donkeys were positive for EqPV-H (5 of the 494 animals), meaning that the disease can also affect donkeys.

Read the full study here.

Read more at HorseTalk.

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Strides For Equality: Scholarship Winner Makes Her Mark In Eventing With Retired Thoroughbred

While preparing one morning last week for the Millbrook Horse Trials in upstate New York, Helen Casteel said, “I never thought I would get here. It's so very, very cool.”

Indeed. Not only was Casteel at Millbrook, but she was training with five-star eventer Sara Kozumplik Murphy and her husband, Irish show jumper Brian Murphy, as part of her award for being the first recipient of the Strides for Equality Equestrians and the United States Eventing Association's Ever So Sweet Scholarship.

The unique scholarship, the first of its kind for riders from diverse backgrounds, provides Casteel the opportunity to train and care for horses while her expenses are covered for three months.

It also gives her a chance to work with her partner Abel.

Abel, you see, is retired Thoroughbred Unapproachable, who has taken Casteel on the ride of her life.

“He's so great, so willing…he's a Thoroughbred. They are just so smart. I didn't think something like this would be possible” she said.

Abel, or Unapproachable, is a Virginia-bred son of Not For Love who raced 18 times at Laurel Park, Pimlico Race Course, Charles Town and Colonial Downs for Hillwood Stable LLC and trainer Rodney Jenkins between 2011-2013. Fifth in the Maryland Million Turf Stakes in 2012, Unapproachable won three races and earned $78,040 before retiring.

“Yeah, I remember [Unapproachable],” recalled Jenkins, a multiple graded stakes-winning trainer based at Laurel who is also a member of the Show Jumping Hall of Fame. “He was a nice looking, big horse. He was a pretty strong-made horse.”

Unapproachable was originally to be trained as a fox hunter at Pleasant Prospect Farm, but that wasn't working out. Meanwhile, Casteel, who graduated from George Washington University and had been intrigued by eventing since attending Groton House in Massachusetts as a high school student, was serving as a barn manager and giving pony club lessons in exchange for lessons for herself at Waredaca.

That's when Abel entered her life.

“He was one of three horses from Pleasant Prospect,” Casteel said. “He was the third I looked at. He was a little immature at first, but I was in no rush. I wasn't planning on making him an amazing eventing horse. I mean, it took two, three years before we really got going.”

Abel and Casteel, who made their eventing debut in 2016, have since moved up to Novice and have had a Top 10 finish in the 2018 Waredaca Novice Three-Day and a Top 20 in the 2019 USEA American Evening Championships Novice Rider Championship.

Jenkins isn't surprised.

“Not at all,” he said, “because he's the right type. That's a big, strong horse that has a big stride. He's physically built to be able to jump and gallop. He was a decent-minded horse, too.”

Added Casteel: “I'm really fortunate to have a horse that was trained by Mr. Jenkins. The thing with Thoroughbreds is they go through a lot of training when they're young. They're smart. They want to please you. And right now, he's just thriving and he always wants to do more. He's eating up all this training.”

For more information on Strides for Equality visit: https://www.stridesforequality.org/

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Barn Buddies: Like His Namesake, Firenze Kitten Is Full Of Fire

Summer at Saratoga is heaven for the writer of a series on barnyard companion animals. Kitten season has just happened, people staying in town bring their dogs to morning barn walks, and there are bound to be goats. Each summer has its star, and this year's star is bright enough that I couldn't resist a special edition of Barn Buddies to spotlight him.

(Our Barn Buddies series is a long-running reader favorite. Check out the archives here. If you'd like to bring back this monthly series as a sponsor, please call our director of advertising.)

Everywhere I've gone this week, people have asked whether I have met Firenze, and they don't mean Kelly Breen's multiple graded stakes winner Firenze Fire. They're referring to a four-month-old tabby cat named Firenze, referred to in some circles by Firenze Kitten.

“I asked the guys in the barn what they wanted to call him, and of course the first thing that came out of their mouths is Firenze,” said John Attfield, assistant to Breen.

Attfield, who is the son of Hall of Fame trainer Roger Attfield, said that perhaps surprisingly, he has not been a lifelong cat person. Firenze is his second cat, and he has taught Attfield a lot. Firenze knows his name, but unlike many felines, will actually come trotting when his name is called. He will not, however, come when called away from the Oklahoma Training Track, which is steps away from his barn and where he tried galloping on the outside rail a couple of times. (He had to be more closely monitored after that outburst.)

Firenze climbs trees, chases blades of grass, and will alternately accept admiration and tussle with whichever visitors come by to see him — and there are many.

Firenze pauses from a play session to snap a selfie

Attfield picked Firenze and a littermate up from a fellow horseman on the backstretch, who insisted he had to take two kittens from a feral cat.

“He was literally as big as my hand,” recalled Attfield. “He was too little to be in the barn, so he lived in my office at Belmont.”

To Attfield's relief, another assistant fell in love with Firenze's sibling and relocated him, so Firenze has the Breen shedrow to himself.

John Attfield and Firenze Kitten

It remains unclear if Firenze will be an efficient mouser; he was too little at Belmont to catch much of anything, and Attfield says there are no mice or rats at Saratoga for him to practice on, but he does pursue birds with enthusiasm, much to Attfield's dismay. If he isn't much of a hunter though, it won't matter — Attfield brings him canned food in a wide variety of flavors, so that he can choose whatever suits his fancy on a given day.

Firenze Kitten and Firenze Fire

Breen is mainly based in New Jersey, so his interactions with the famous Firenze have been limited, but Attfield reports the spunky kitten has made quite the impression. Breen was headed out one afternoon and had the kitten draped around his neck.

“I said, 'Where are you going with my cat?'” said Attfield. “They're bloody amazing animals. I didn't realize how cool they were.”

If ever Attfield can't find his little companion, he just peeks into the back of Firenze Fire's stall, the first one next to the barn office. Firenze [Kitten] will nap there when things are quiet, and has a little hole back there that he can use to move between the office and his namesake. Attfield isn't sure what the cat may get up to in the evenings, but during the day Firenze Fire is the only horse who gets a visit from Firenze.

 

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