Olympic champions Ros Canter, Laura Collett and Tom McEwen are among the list of riders who have been nominated to represent Great Britain at the eventing World Championships, which will take place in Aachen from Tuesday 11 Sunday 23 August.The trio has been named with the same horses who they partnered to Olympic glory in Paris two years ago. Ros has been nominated with her Badminton and Burghley winner Lordships Graffalo, Laura has been named with her European Championship-winning partner London 52 while Tom has been selected aboard both JL Dublin, with who he finished fourth individually at the 2024 Olympics, and Brookfield Quality, with whom he finished fifth in Kentucky this spring.Also on the list are Caroline Harris and D Day, who triumphed at Luhmuhlen last week, Bubby Upton and Its Cooley Time, who successfully defended their Bramham title earlier this month, and Gemma Stevens with both Cooley Park Muze and Flash Cooley.Tom McEwen and JL Dublin at the 2025 European Championships. The full list of nominations for the British Equestrian dressage team, in partnership with Agria, is:Sarah Bullimorewith Brett Bullimore, Christopher Gillespie, Susan Gillespie and Bruce SaintsCorimiro(chestnut, gelding, 10yrs, 17hh, Amiro Z x Lovis Corinth, breeder: Brett and Sarah Bullimore GBR)Rosalind Canterwith Archie and Michele SaulsLordships Graffalo(bay, gelding, 14yrs, 17hh, Birkhofs Grafenstolz TSF x Rock King, breeders: Lordships Stud and Pennie Wallace GBR)Laura Collettwith Karen Bartlett, Keith Scott and her ownLondon 52(bay, gelding, 17yrs, 16.3hh, Landos x Quinar, breeder: Ocke Riewarts GER)David Doelwith Mary Fox, Gillian Jonas and his ownGalileo Nieuwmoed(dark bay, gelding, 15yrs, 17hh, Carambole x Harcos, breeders: J. W. and A. P. Jurrius NED)Caroline Harriswith Lucy Matthews, Fiona Olivier, Marie Anne Richards and Heather RoylesD. Day(bay, gelding, 12yrs, 16.1hh, Billy Mexico x Dilum XX, breeder: Fiona Olivier GBR)Yasmin Inghamwith Janette Chinn and The Sue Davies FundsGypsie du Loir(dark bay, mare, 10yrs, 16.2hh, Herald 3 x Canaletto, breeder: Pierre Gouye FRA)Tom Jacksonwith Michael StenningsUnited 36(bay, gelding, 10yrs, 16.2hh, Ucello x Espiri, breeder: Heinrich Bohmke GER)Katie Mageewith Angela HislopsTreworra(bay, gelding, 12yrs, 17hh, Jaguar Mail x Tower of Magic, breeder: Preci Spark Ltd GBR)Tom McEwenwith John and Chloe Perry and Alison SwinburnsBrookfield Quality(bay, gelding, 17yrs, 16.2hh, OBOS Quality x Cavalier Royale, breeder: Sean Kelly IRL), and James and Jo Lambert and Deirdre JohnstonsJL Dublin(dark brown, gelding, 15yrs, 16.2hh, Diarado x Cantano, breeder: Volker Gttsche-Gtze GER)Harry Meadewith Charlotte and Peter OppermansCavalier Crystal(bay, mare, 16yrs, 16.3hh, Jack of Diamonds x Cavalier Royale, breeder: Thomas Horgan IRL)Selina Milneswith Angela Rucker and William RuckersCooley Snapchat(bay, gelding, 12yrs, 16.3hh, Kannan x VDL Arkansas, breeder: Alan Wheeler IRL)Gemma Stevenswith The Rex SyndicatesCooley Park Muze(bay, gelding, 10yrs, 16.1hh, Pollux de Muze Z x LArc de Triomphe, breeder: TJM Equestrian IRL) and Pru DawesFlash Cooley(grey, gelding, 14yrs, 16.1hh, CSF Mr Kroon x OBOS Quality, breeder: Jim ONeill IRL)Bubby Uptonwith Jane Dear, Susan de Zulueta, Susie Holland-Bosworth, The Duchess of Norfolk, Hilary Russell and her ownIts Cooley Time(grey, gelding, 11yrs, 16.1hh, Quality Time TN x Heartbreaker, breeder: Ishennisnag Stud IRL)Selection decisions are subject to the athlete and horse maintaining fitness and performance. The selected squad of five combinations to travel to Aachen, plus non-travelling reserves, will be announced at a later date.Laura Collett and London 52 took individual gold at the 2025 European Championships.Images Tim Wilkinson/Your Horse.More from Your HorseTim Price returns to the top of the FEI World RankingsHow to improve poor toplineThe Scales of Training explained, including impulsionPiggy Marchs training exercise: jump out of trot to test rider balanceFive of the most common rider jumping positions solvedThe post Eventing shortlist for World Championships revealed appeared first on Your Horse.

On June 25, a 6-year-old pony-cross stallion at a private facility in Calvert County, Maryland, tested positive for strangles. The stallion developed clinical signs on June 19, including mild upper respiratory signs, mild fever, and a submandibular abscess. He is now quarantined. Twenty horses have been exposed.EDCC Health Watch is an Equine Network marketing program that utilizes information from the Equine Disease Communication Center (EDCC) to create and disseminate verified equine disease reports. TheEDCCis an independent nonprofit organization that is supported by industry donations in order to provide open access to infectious disease information.About StranglesStranglesin horses is an infection caused byStreptococcus equisubspeciesequiand spread through direct contact with other equids or contaminated surfaces. Horses that arent showing clinical signs can harbor and spread the bacteria, and recovered horses remain contagious for at least six weeks, with the potential to cause outbreaks long-term.Infected horses can exhibit a variety of clinical signs:FeverSwollen and/or abscessed lymph nodesNasal dischargeCoughing or wheezingMuscle swellingDifficulty swallowingVeterinarians diagnose horses using polymerase chain reaction (PCR) testing with either a nasal swab, wash, or an abscess sample, and they treat most cases based on clinical signs, implementing antibiotics for severe cases. Overuse of antibiotics can prevent an infected horse from developing immunity. Most horses make a full recovery in three to four weeks.A vaccine is available but not always effective. Biosecurity measures of quarantining new horses at a facility and maintaining high standards of hygiene and disinfecting surfaces can helplower the risk of outbreakorcontain one when it occurs.

British Equestrian has revealed the eight horse and rider combinations who have been nominated to represent Great Britain at the FEI Dressage World Championship in Aachen this summer. Among the entries are three-time Olympic gold medallist Charlotte Dujardin riding the 12-year-old Oldenburg gelding Brave Heart, the Olympic bronze medal-winning partnership of Carl Hester and Fame, and the 2026 World Cup Final champions Becky Moody and the homebred Jagerbomb.It is Charlottes first nomination for a GB championship team since she was banned from competition by the FEI for a year after she engaged in conduct contrary to the principles of horse welfare.Defending champions nominatedTwo-time World Champions Charlotte Fry and the 15-year-old stallion Glamourdale are also listed as are Fiona Bigwood (Donna Bella), Gareth Hughes (Mowgli-Olympia MC), Susan Page (Harmonys Giulilanta) and Sadie Smith (Swanmore Dantina)Selection decisions are subject to the athlete and horse maintaining fitness and performance. The selected squad of four combinations to travel to Aachen for the event, which takes place from Tuesday 11 Sunday 23 August, plus non-travelling reserves, will be announced at a later date.The full list of nominations for the British Equestrian dressage team, in partnership with Agria, is:Fiona Bigwoodwith her ownDonna Bella(chestnut, mare, 10yrs, 16.3hh, Don Juan de Hus x I. P. S. Gribaldi, breeder: Fiona Bigwood GBR)Charlotte Dujardinwith Ellen McCarthy, Spencer McCarthy and Bridget McCarthysBrave Heart(bay, gelding, 12yrs, 16.1hh, Bordeaux 28 x Blue Hors Zack, breeders: Shirley and Titian Wilaras GER)Charlotte Frywith Van Olst Horses and her ownGlamourdale(black, stallion, 15yrs, 16.3hh, Lord Leatherdale x Negro, breeder: J. Rodenburg NED)Carl Hesterwith Fiona Bigwood, Mette Dahl and his ownFame(bay, stallion, 16yrs, 16.2hh, Bordeaux 28 x Rhodium, breeder: V. O. F. G. oM. Gerritsen NED)Gareth Hugheswith Georgina Wilkinson, Rebecca Hughes and his ownMowgli-Olympia MC(chestnut, gelding, 9yrs, 17hh, s. Rousseau, breeder: M. Van Summeren NED)Becky Moodywith Jo Cooper and her ownJagerbomb(bay, gelding, 12yrs, 17.1hh, Dante Weltino OLD x Jazz, breeder: Becky Moody GBR)Susan Papewith Harmony Sporthorses and her ownHarmonys Giulilanta(chestnut, mare, 15yrs, 16.2hh, Broere Jazz x Flemmingh, breeders: A. Vogelaar and J. Knol GER)Sadie Smithwith her ownSwanmore Dantina(dark bay, mare, 11yrs, 16hh, Dante Weltino OLD x Charatan W, breeder: Ben St John James GBR)Para nominated entries revealedFourteen-time Paralympic gold medallist Lee Pearson is one of the nominated entriesfor the FEI Para Dressage World Championship, which also take place in Aachen in August.Lee has been named with his 14-year-old gelding Breezer.Mari Durward-Akhurst, who won a bronze medal at the 2024 Paralympics in Paris, has been nominated with the 19-year-old mare Athene Lindebjerg, while Sophie Wells, a multiple Paralympic champion, is listed with both LJT Egebjerggards Samoa and MSJ Gold Standard.The full list of nominations is:Grade 1Mari Durward-Akhurstwith Diane Redfern, Nick Durward-Akhurst and Romilly HartsAthene Lindebjerg(black, mare 19yrs, 17hh, Gribaldi x Diamant, breeder: Ulla and Kristian Bech DEN)Grade 2Jemima Greenwith her own Fantabulous (chestnut, gelding, 8yrs, 16.1hh, Foundation 2 x Furst Romancier, breeder: Rainer and Angelika Alhers GER)Sir Lee Pearsonwith Jenson Guest, David Pearson, Linda Pearson and his ownBreezer(bay, gelding, 14yrs, 16.1hh, s. Barcardi, breeder: Sir Lee Pearson GBR)Grade 3Erin Orfordwith Carl Hester, Anne Barrott, Rowena Luard and The Lady Joseph TrustsLJT Nutbush(bay, gelding, 14yrs, 16.1hh, Negro x Sion, breeder: Mr A. Gregory GBR)Grade 4Nicola Naylorwith Rosalind Emery Kay and her ownHumberto L(bay, gelding, 14yrs, 16.2hh, Cachet L x Haarlem, breeder: J. Lamers NED) and her ownMoulin Rouge(chestnut, mare, 9yrs, 16.2hh, Ferdinand x Dorado, breeder: P. Buwalda NED)Grade 5Sophie Wellswith The Lady Joseph TrustsLJT Egebjerggards Samoa(black, mare, 10yrs, 16.1hh, Blue Hors St Schrufo x I. P. S. Gribaldi, breeder: Anders Green Hansen DEN) and Emma BlundellsMSJ Gold Standard(chestnut, mare, 10yrs, 16.2hh, Governer x Furstenball, breeder: Mount St John Equestrian LLP GBR).The squad of four and the non-travelling reserves will be announced in due course. Image of Charlotte Dujardin Dan Isitene/Getty Images.Related contentDid you know? Waistcoats are allowed to be worn under British Dressage and British Eventing rulesDo draw reins ever have a place when training horses? BHS coach weighs up the debateDouble bridles explainedFive tips from a dressage judge to help you feel more confident in the arenaLacking confidence? 10 signs of high-functioning anxiety in horse ridersThe post Charlotte Dujardin among nominated entries for Dressage World Championships appeared first on Your Horse.

When did you last trot to a fence? Canter is usually the preferred choice for finding the perfect take-off spot, but according to Burghley 2022 winner Piggy March, it is useful to regularly try jumping out of trot too and be prepared for it to feel untidy.This is a training exercise that Piggy regularly uses at home with her own horses. It tests rider balance and helps achieve an agile, rideable horse.Piggy demonstrated the training exercise at Your Horse Live. It requires five poles, five sets of jump wings and your imagination, because there are dozens of lines to ride as you work on honing you and your horses skills and youll benefit hugely from doing it in trot.Jumping out of trotThis is a brilliant exercise that I use at home. I do it with horses of all levels, says Piggy.Some days Ill be brave with how high the fences are that I trot at. I do it to push me; trying to keep in balance over that extra bit of height. Ive done this exercise for years and its one I keep doing in order to work on myself.Every time I do it on a new horse I feel all over the place because theyre not used to it. So dont panic if something goes wrong or its not quite feeling how its meant to just keep going, adds Piggy.With all disciplines being so technical these days, basic training all rolls into one, whether youre on the flat, jumping or riding across country. I want a nicely trained and happy horse who is rideable.This exercise works on the riders balance and the horses, as well as mobility and trainability all the things you need to have for a confident, rideable horse.Exercise 1: snaking in and outDiagram shows exercises 1 and 2Set up five uprights without ground lines down the middle of your training field or arena with each fence on a one-stride distance.After warming up, start trotting your horse between the obstacles, varying the direction that you ride in, changing the rein and alternating which fences you ride between.Turn one way and then the other, so that you start to feel like the horse is working with you and like youre getting bend around their ribcage, explains Piggy, who says that you shouldnt worry about your horse working in a perfect outline while doing this.You wont be looking like youre about to go into a dressage test, because youre doing lots of bending and youve got longer reins.This is just an exercise to get the horse really loosened up, on the aids and working with you, explains Piggy, but you can also make it what you want it to be. When your horse feels ready, you can get your reins together a bit more and vary the outline theyre working in.Exercise 2: transitions between fencesNext start asking for transitions between the fences. Start with trot-walk and walk-trot.Imagine there is a centre line up the middle of the fences and do a trot-walk transition every time you cross over the centre line, says Piggy.Think about your balance and preparation. Around the corner you should already be thinking about slightly bringing your upper body back and looking for your straight line.Even though its a downward transition, it still needs to be forward. Youre preparing it early and through body-seat language.If you can get your horse to respond to you rather than going to the bridle [that is, pulling on the reins] it will be a forward transition, which is what you want, continues Piggy.A bad transition stops the forward momentum. It happens when its left to the last minute rather than being prepared for and is an afterthought of walk.Introduce canter transitionsMove on to riding trot-canter and canter-trot transitions every time you cross the centre line.Depending on the level you and your horse are working at, you could do walk-canter and canter-walk transitions too. Advanced horses can do flying changes instead.Some horses anticipate. If Im on one like that I just quietly keep doing the exercise until he relaxes and stays on an aid for me, says Piggy.Make sure your horse is straight in their body and has enough room for the transition too. A few extra steps of the pace youve changed into is better than doing only two or three and rushing the transition, for example.Also dont let the horse get in front of you they must wait for the aid.Youre doing this because you want the horse to become sensitive to your body language [so that they start to slow down and wait when they feel your upper body sit up], explains Piggy.Exercise 3: trot to a fenceDiagram shows exercise 3Approach one of the fences in your line of five in trot and jump it at an angle.I dont particularly like jumping out of trot because its not as comfortable [as canter] and it can get ugly, confesses Piggy.Thats why I make myself do it; it works on the riders own balance and builds trust between you and your horse that they can stay on a line at this pace. Its slow but the horse is in front of your leg; youre trusting that your horse will stay on a line and youre learning to stay with it.Trotting to a fence can be ugly if they get in too close; its not an obvious stride like you get with canter. They can pick up [to jump] early and so you have to slip the reins and try not to fall off the back, or sometimes you get in front of them and then they dont go.Even on a horse who has done this before, it doesnt mean theyre going to do it very well the next time you try, continues Piggy.I dont mind if they knock it down; its about learning patience, having balance and staying in a rhythm.If your horse lands in canter, quietly ask them to trot again before approaching the next fence. Piggy says the aim is for you as the rider to stay in neutral, putting your horse on a line in the best rhythm and then trusting them to jump the fence.Next stepsMove on to jumping more than one fence but continuing to jump at an angle. Fence two to fence four for example.The fences can be as small as you like but try to stay in trot. It doesnt matter which way you do which fence vary the lines, advises Piggy.Exercise 4: try it in canterDiagram shows exercise 4When youre ready, repeat the previous exercise in canter and try three fences in a row, for example fences one to three and then five.If your horse can make a flying change each time you change direction, great. If not, give yourself time to make a change through trot.You can also indicate which leg you want to land with leading by pushing your weight down into that stirrup over the previous fence.With a horse who has a weak canter I sometimes jump the first fence and then circle, so that I get a bit of bend through their body, and then do the same before the last fence.It encourages them to try and find their balance. After a couple of times, they start picking up whats happening.The final stage is to jump down the grid in a straight line.You can go as big or small as you like with the fences, but dont put them all at the same height. Vary them, even if its only a little difference, so the horse has to look and gauge what height is where.Jump it in the other direction too and approach off both reins.Theres no rules for this exercise, make it up as you go, as long as youre in your comfort zone, adds Piggy.It really is such a good exercise to set up at home because theres so much you can do with it. You can work on yourself and your horse in so many ways.How high are Piggys fences?The key to this exercise is that you can adapt it to suit you and your horse. Lacking confidence or on a green or young horse? Then ride wider lines to each fence and dont try to link together too many that are close together.Choose a height that is best for you both: whether its poles on the floor or 23, its better to start small and build up the height and technicality as you become more confident.Start small even if the exercise isnt new to you too, and remember that horses learn through repetition, so making this exercise a regular part of your routine will benefit you both hugely.Trainings not about how high you can jump or how fast you can go, its knowing whats right for you, reasons Piggy. Even smaller ones out of trot can feel quite big.This is why doesnt Piggy use a ground polePiggy chooses to set this exercise up without ground lines on any of the fences.I dont really know why I dont have them; it doesnt feel as inviting and is a little upright but cross-country fences these days are more upright so this is good practice. And you know what? Horses generally jump very well without a ground rail being there.Yogi Breisner did this exercise with me probably 10 years ago and he didnt use ground rails; I found it interesting and I havent used them myself.However, if she were riding a particularly young or inexperienced horse, Piggy would consider adding in ground lines.If its a real baby and I want them to get used to the exercise then I probably will put a ground rail in to start because I want to keep them confident. Otherwise its really personal preference of ground rail or no ground rail.Find out more about Piggy March hereMain image & diagrams Your Horse Library/Sally Newcomb/Geoff Johnson Design. NB: Piggy March is not pictured riding.Related contentPiggy Marchs routine for a confident and clear showjumping roundOliver Townends training tactics for a horse who is very tense or freshJoe Stockdales tips for success when competing a horse indoorsPoor topline: what it is, plus how to build and develop the correct muscles in your horseThe post Jump out of trot to test rider balance and build trust with this exercise from Piggy March appeared first on Your Horse.

According to the assistant state veterinarian, five horses at a private facility in Pierce County, Washington, have tested positive for equine infectious anemia (EIA). There are reportedly 13 horses at the facility.Epidemiology and bush track exposure investigations are ongoing. The horses are currently quarantined.EDCC Health Watch is an Equine Network marketing program that utilizes information from the Equine Disease Communication Center (EDCC) to create and disseminate verified equine disease reports. TheEDCCis an independent nonprofit organization that is supported by industry donations in order to provide open access to infectious disease information.About EIAEquine infectious anemiais a viral disease that attacks horses immune systems. The virus is transmitted through the exchange of body fluids from an infected to an uninfected animal, often by blood-feeding insects such as horseflies. It can also be transmitted through the use of blood-contaminated instruments or needles.ACoggins test screens horses blood for antibodiesthat are indicative of the presence of the EIA virus. Most U.S. states require horses to have proof of a negative Coggins test to travel across state lines.Once an animal is infected with EIA, it is infected for life and can be a reservoir for the spread of disease. Not all horses show signs of disease,but those that do can exhibit:Progressive body condition loss;Muscle weakness;Poor stamina;Fever;Depression; andAnemia.EIA has no vaccine and no cure. A horse diagnosed with the disease dies, is euthanized, or must be placed under extremely strict quarantine conditions (at least 200 yards away from unaffected equids) for the rest of his life.

Photo: iStockAs horses age, their health care needs and associated costs often increase, making proactive management especially important.Havingyour veterinarian perform regularexaminations, dental evaluations, andmonitoring forcommon senior conditionscan help youcatch problems early and potentially reduce long-term expenses. Senior horses might alsorequirespecialized feeds, medications, oradditionalsupportive care, which can increase monthly costs. Developing a preventive care plan and budgeting for age-related health needs can help owners support their horses comfort and longevity.Register for this AskTheHorseLive event where two veterinarians will answer your senior horse expense questions.Register NowAsk The Horse Live begins on Thursday, July 9, 2026 at 8:00 p.m. EDT Days Hours MinutesAbout the Experts: Alex Bianco, DVM, Dipl. ACVIM Alex Bianco, DVM, Dipl. ACVIM, is a Minneapolis native and graduate of the University of Minnesota College of Veterinary Medicine, in St. Paul. After completing a rotating equine internship at Kansas State University, in Manhattan, she completed a large animal internal medicine residency at Purdue University, in Lafayette, Indiana. Following her residency, Bianco remained at Purdue for an additional year working as an equine ambulatory veterinarian, before returning to the University of Minnesota as clinical faculty in 2016. Jonathan Yardley, DVMJonathan Yardley, DVM, is a graduate of Tufts School of Veterinary Medicine. He began his career with a private practice internship, before joining a prominent racetrack practice, Teigland, Franklin and Brokken, where he specialized in caring for an elite clientele of Thoroughbred racehorses. In 2014 Yardley shifted from private practice to academia as an ambulatory, clinical-track veterinarian in the Equine Field Service department at The Ohio State Universitys College of Veterinary Medicine, where he currently serves as an associate professor. As the equine rotating internship director, Yardley is committed to fostering an enriching learning environment that empowers interns to develop their clinical and critical thinking skills throughout their yearlong internships. Dedicated to veterinary wellness, Yardley serves as co-chair of the College of Veterinary Medicine Health & Wellbeing Committee, championing evidence-based strategies for health care improvement. He hosts the podcast Horse Talk with Doc, where he shares valuable insights into equine health and well-being. Outside of his professional pursuits, Yardley is an avid curler who enjoys traveling with his wife. They share their home with three beloved four-legged Doodles.

Carefully monitor horse wounds for signs of screwworm larvae. | Erica Larson/The HorseNew World screwworm (NWS) remains a significant animal health concern because the fly larvae feed on living tissue and can quickly turn a minor wound into a painful and potentially life-threatening problem. During a June 18 webinar hosted by the United States Equestrian Federation (USEF) and the American Association of Equine Practitioners, Katie Flynn, DVM, USEFs senior veterinarian of equine health and biosecurity and Neil Gray, DVM, with the Equitarian Initiative, reviewed how NWS spreads, what horse owners should watch for, and the steps facilities can take to reduce risk.New World Screwworm Flies vs. Other BlowfliesWhile New World screwworm flies and other blowflies might appear similar at first glance, they behave very differently. Unlike typical blowfly larvae, which feed on dead or decaying tissue, NWS larvae feed on living tissue and require a live host to complete their development. Because NWS can infest any warm-blooded mammal and cause severe illness or death if left untreated, it poses a far greater animal (and human) health threat than the nuisance blowflies or bot flies horse owners commonly encounter.New World Screwworm Life CycleThe NWS fly is attracted to wounds. The adult fly smells the break in skin, which attracts the female to lay her eggs around the wound edge, said Flynn. These eggs hatch within 12-24 hours, and the larvae then eat the living flesh, burrowing deeper into the tissue. The larvae feed and grow over five to seven days, through multiple stages, and as they mature around seven days, they drop to the ground and pupate in the soil, said Flynn. The adult fly emerges from the soil seven to 54 days later, depending on the temperature and humidity.The adult female fly will only mate once, said Flynn. Once she mates, she will wait until she senses a wound to lay her eggs on. That wound can be any size, even as small as a tick bite.New World Screwworm Appearance and Clinical SignsScrewworm larvae differs from other blowfly larvae in appearance. They literally look like a screw, said Gray. They have a conical shape with bands around that allow them to screw their way into the tissue as they burrow in. The flies themselves can be difficult to differentiate from other flies. There are many flies that are green, metallic flies with red eyes, said Gray.When identifying affected wounds, Gray said, youre looking for a wound that is more irritated than youd expect with a foul smelling odor. He added that owners should be suspicious of wounds with maggots or a large presence of flies. If left untreated, cases can be fatal.Screwworm fly | USDAHistory of New World Screwworm in the U.S.Since its eradication from the U.S. in 1966, three distinct incursions of NWS have occurred, said Flynn. In 1976, there was an isolated outbreak in an animal in Texas, which was contained and eliminated. In 2016 to 2017, an outbreak happened in the Florida Keys, which was confirmed in Key deer in late September 2016 and affected some pets. Officials eradicated the pest by March 2017. In August 2025 the Centers for Disease Control and Prevention reported one confirmed case in a human returning to the U.S. after travel to El Salvador. Flynn said this case was not evidence of local establishment in the U.S. because it was caught and addressed before the screwworm could go through its life cycle and become a fly.New World Screwworm Management for Horse FarmsFlynn recommended a six-step procedure for protecting your animals from NWS infestation:Check wounds, body openings, and recent surgical sites daily for pain, odor, swelling, or larvae.Promptly clean, cover, and monitor cuts, including surgical sites, tick bites, and foal umbilical areas.Reduce fly breeding areas by removing manure regularly, improving drainage on the property, and cleaning wet organic debris.Report suspicious cases immediately to your veterinarian and local animal health officials.Protect the facilitys environment by maintaining a clean and safe property to reduce injury and fly exposure.Use targeted fly control products labeled for use on horses and horse properties.Screwworm infestation can progress rapidly and can kill an animal if not promptly discovered and treated, said Flynn. Most animals recover fully when they are diagnosed and treated early.Regulatory Response and Horse Movement RestrictionsFlynn said general regulatory responses to NWS cases include:Identifying suspected casesReporting cases to state animal health officials and the U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) immediatelyConfirming the diagnosis through sample (in this case, larvae) collection and lab testingResponding to the case with quarantine and movement controls, surveillance and treatment of cases, wildlife coordination (monitoring because wildlife can also be affected), and sterile fly releaseThe only way to eradicate NWS is through sterile fly release to knock down generations, she said. It typically takes three generations to knock the numbers down to zero. The NWS sterile fly release is dependent upon identification of cases, which highlights the importance of reporting.Flynn said a common question among horse owners is How can I move my horses? She emphasized that because the situation is constantly changing, owners planning to transport horses should keep in contact with both the state of origin and the state of destination for their animal. Movement requirements can change rapidly as a new case of screwworm is confirmed, a quarantine issued and an infested zone with movement restrictions implemented by state animal health officials.Different states will have different requirements for moving horses who have been in infested zones, said Flynn. Infested zones are defined as a radius of 20 kilometers or about 12 miles around a confirmed case. Horses moving from these zones to another local area or to another state will likely be required to undergo inspections and certification that they do not appear to be carrying screwworm larvae. Depending upon the state of destination and state of origin, those inspections might need to take place before they leave the infested zone or after their arrival to their destination, said Flynn.Horse owners should expect that equine event and travel plans might be disrupted, and cross-border movement could be affected, said Flynn. As of the time of the webinar, horses couldnt travel to Mexico, and horses could only fly into the U.S. from Mexico. Flynn added that Canada had also placed restrictions on equine movement, allowing only horses that have been outside of an infested state for at least 21 days to cross the border. These restrictions are still applicable as of the time of publication.NWS Mitigation for Equine EventsFlynn said the current plan to mitigate the risk of NWS spread at USEF equine events includes requiring a health declaration at entry that discloses the animals recent travel and notes any wounds. On arrival at a USEF licensed event, competition management will inspect a horse coming from an infested state for wounds, odor, irritation, or maggots. If inspectors find a wound, a veterinarian will need to check the horse for larvae. If the veterinarian finds larvae on the horse, they will immediately isolate the animal and report a suspect case. Flynn said competition venues are also encouraged to proactively manage manure and enhance sanitation to improve insect control.Flynn said the USEF has been contacted by equine industry stakeholders outside of licensed competitions, and she has shared her suggested protocols with them in hopes of reducing the flys spread. While the fly can expand its geographic range under its own power, the concern for Flynn and other animal health officials is also that an animal could be transported well outside the flys current range while carrying larvae, leading to a new population center for the screwworm fly. Take-Home MessageNew World screwworm infestations can develop rapidly, making early detection and prompt reporting critical for protecting horses and preventing spread. As response efforts continue, horse owners should expect movement requirements to change as officials work to limit further spread.