STRANGLES

horse disease caused by Streptococcus equi, a bacterium that invades nasal and throat passages and forms abscesses in lymph nodes and other parts of the body. It is one of a group of diseases called distemper of horses. Young horses are most susceptible to it, and outbreaks of the disease usually occur where a number of horses are stabled. Mortality is low. Treatment includes complete rest and antibiotic therapy. Isolation of infected animals and rigid sanitation of quarters help reduce the spread of the disease. Preventive preparations are used but are not always effective.