Lifecycle: Neck threadworms have an indirect life cycle. Neck threadworm
microfilariae live under the horse's skin and are picked up by the biting
midge when it feeds on the horse. Microfilariae develop into infective
larvae in the midge's mouth and are passed when the midge bites a horse.
How
It Gets Into Your Horse: The horse is bitten by an infected midge.
Larvae are deposited into the bite wound, where they migrate to ligaments
in the neck, flexor tendons and suspensory ligaments.
Dangers If Left Untreated: Adult neck threadworms
in the ligaments and tendons cause swelling and pain. Microfilariae
may invade the lens of the eye, causing irritation, swelling
and sometimes blindness. Microfilariae under the skin may
cause irritation.
NECK
THREADWORMS
Onchocerca
fenbendazole
ivermectin
moxidectin
oxfendazole
oxibendazole
pyrantel
pamoate
pyrantel
tartrate-daily
pyrantel
tartrate-single
Based
on registered label claims and FOI summaries for each product
on file with the FDA; single-dose application.
