| 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 |
| an outbreak of waterborne giardiasis associated with heavy water runoff due to warm weather and volcanic ashfall. | from mid-june through early august 1980, an outbreak of gastrointestinal illness in red lodge, montana affected approximately 780 persons, as estimated from attack rates of 33 per cent and 15 per cent in urban and rural residents, respectively. giardia lamblia was identified in stool specimens from 51 per cent of 47 persons with a history of untreated gastrointestinal illness and in 13 per cent of 24 specimens from asymptomatic persons (p = .00045, fisher's exact test). the epidemic curve was bi ... | 1983 | 6869640 |