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Equine viral arteritis (EVA) is a disease of horses caused by a virus of the species Alphaarterivirus equid, an RNA virus. [1] [2] It is the only species in the genus Alphaarterivirus, and that is the only genus in the Equarterivirinae subfamily. The virus which causes EVA was first isolated in 1953, but the disease has afflicted equine animals ...
Strangles (also called equine distemper) is a contagious upper respiratory tract infection of horses and other equines caused by a Gram-positive bacterium, Streptococcus equi. [1] As a result, the lymph nodes swell, compressing the pharynx , larynx , and trachea , and can cause airway obstruction leading to death, hence the name strangles. [ 2 ]
Equine nasal cysts are abnormal fluid filled sacs which occur inside the nasal sinuses of horses. The cysts are lined with epithelium, and usually occur in the ventral conchae or maxillary sinuses, [1] most commonly in horses less than one year old. [2] Surgical removal of the cyst has a good prognosis for the horse.
The horse may or may not be pyrexic (fevered). The limb may occasionally ooze serum. In ulcerative lumphangitis, "cording" of the lymphatics and the formation of hard nodules and abscesses may also occur; occasionally, a greenish, malodorous discharge is present. In the US in particular, the disease may be characterised by multiple small, open ...
Main symptoms of swimmer’s ear are a feeling of fullness in the ear, itchiness, redness, and swelling in or around the ear canal, muffled hearing, pain in the external ear and ear canal and especially a smelly discharge from the ear. [9] Constriction of the ear canal from bone growth (Surfer's ear) can trap debris leading to infection. [10]
It is the most important viral cause of respiratory infection in foals. [2] Like other herpes viruses, EHV-4 causes a lifelong latent infection in affected animals. These horses are usually the source for new infection for foals over two months old, weanlings, and yearlings. Symptoms include fever, loss of appetite, and discharge from the nose.
This form does not have such a high mortality rate, but the lymph nodes and above the eyes are not as swelled. The swelling above the eyes are a sign that the brain is swollen, and if it is too much the eyes will pop out. If treated correctly the animals has a higher chance of surviving. Mild or horse sickness fever form
Equine recurrent uveitis (ERU) – also known as moon blindness, recurrent iridocyclitis, or periodic ophthalmia [1] – is an acute, nongranulomatous inflammation of the uveal tract of the eye, occurring commonly in horses of all breeds, worldwide. The causative factor is not known, but several pathogeneses have been suggested.