WHAT IS IT?
“Strangles” is an infection caused by the bacteria Streptococcus equi, subspecies equi. It most often causes infection of the upper respiratory tract in horses, causing fever, nasal discharge, cough, and swelling and draining of the submandibular lymph nodes (located between the two sides of the lower jaw). This form of the disease is usually self-limiting (gets better without medications) and has a high recovery rate. Although it is very uncommon, strangles can also cause infection and abscessation of the lungs, abdomen, and internal organs. This internal form of strangles is known as “bastard strangles” and is much more deadly than the more common form of the disease.