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an acute infectious disease of horses manifested by mucopurulent inflammation of the nasal and pharyngeal mucous membrane and submandibular lymph nodes.

Strangles occurs everywhere, most often in countries with a temperate or cold climate; sporadic cases are reported in the USSR. The causative agent is Streptococcus equi, a highly resistant microorganism in the environment. The source of the pathogen is infected horses and those that have recovered from the disease. The disease may be transmitted through feed, water, grooming objects, troughs, and stable walls contaminated by the pus and nasal discharge of diseased horses. Strangles epizootics usually occur in late fall, winter, or early spring. The course of the disease is generally acute. The typical form of strangles is characterized by fever, listlessness, anorexia, and enlargement of the submandibular lymph nodes and formation of abscesses in them. The diagnosis is based on epizootiological data, clinical symptoms, and results of laboratory tests. Sick horses are isolated and treated. Each animal must be individually cared for, fed, and watered. The stalls, grooming objects, harnesses, and troughs must be thoroughly disinfected.


Bakulov, I. A. “Myt.” In Epizootologiia. Edited by R. F. Sosov. Moscow, 1969.
References in periodicals archive ?
The ERA can confirm that there has not been a case of strangles in the UAE Thoroughbred racing population for more than 10 years and there were no signs suggestive of strangles at any time in horses participating in the Dubai International Racing Carnival," the ERA statement said.
Having done so, it turned out not to be strangles, which was a huge relief all round.
Everyone wants to know if your horse has strangles, but no one wants to know you when it has.
uk or for further information call the strangles information line on 01908 685685.
She will address the launch event, held at the Royal Society of Medicine in central London, and discuss her own experiences of dealing with strangles, organisers have said.
Strangles can also be spread through contamination of food or water, or from the hands and clothing of stable staff.
LDRC secretary Caroline Kemp said: "We've heard from a reliable source that strangles is in the vicinity.
This big breakthrough is a real boon to horse owners and I believe will lead to a significant drop in strangles outbreaks.
Although strangles is no longer a notifiable sickness, Marner has informed the Animal Health Trust, the Thoroughbred Breeders' Association and her neighbour Tregoning.
The AHT's head of epidemiology, Richard Newton, added that strangles is the most commonly reported horse disease in the world, and unlike many contagious illnesses, is present on every continent.
The company said in a statement that evidence of the strangles bacterium, streptococcus equi, was discovered in the horses, and they will be auctioned separately on Tuesday.