News — neck threadworm in horses

Treatment for Neck Threadworms in Horses Table of Contents What the heck is a neck threadworm? Neck threadworms are the common name for Onchocerca cervicalis, a filarial parasite. While the worm can be found across the globe, it is more prevalent in hot, humid climates from mid-summer through fall. The adult worm lives in or around the nuchal ligament, which is the ligament that runs from the withers to the base of the skull. The adult worm is thin and can grow from 3-60 cm long and can live approximately 10-12 years. Most clinical signs are caused by the adult worm’s...