Growing Problem: Horse Parasites

If I were a horse, I would not worry about gastrointestinal parasites. I would worry that OMG THERE IS A GIANT PARASITE RIDING ON MY BACK.

(The link is (oddly) a PDF- buyer beware)

A Growing Problem
Most ascarids are comparatively large ... PARASITE PRIMER PART 3—ASCARIDS: A GROWING PROBLEM ...