| intestinal infections in humans in the rocky mountain region, united states. | to evaluate the seasonal prevalence of human intestinal parasites in the western states of colorado, utah, new mexico, and montana, fecal samples were examined as part of routine diagnostic testing from patients experiencing gastrointestinal discomfort in august (summer) 2006, january (winter), and april (spring) 2007. parasite identification in positive samples was confirmed using light microscopy after wet mount and trichrome staining techniques. seventy-eight of the 1,083 patients surveyed (7 ... | 2010 | 19807196 |