Ejection fraction is a major determinant of morbidity and mortality for patients with ischemic heart disease. Patients with an ejection fraction of 0.40 or less are generally recognized as having a poorer prognosis than those patients with an ejection fraction of 0.
View Article and Find Full Text PDFObjective: To determine the source of an international outbreak of shigellosis associated with consumption of food served by a Minnesota-based airline.
Design: Cohort studies of players and staff of a Minnesota-based professional football team and passengers on flights with a confirmed case of outbreak-associated Shigella sonnei infection.
Setting: Community- and industry-based studies conducted from October through November 1988.
We conducted a prospective, community-based study of healthy breast-fed Mexican infants to determine the protective effects of anti-Shigella secretory IgA antibodies in milk. Milk samples were collected monthly, and stool culture specimens were obtained weekly and at the time of episodes of diarrhea. Nineteen breast-fed infants were found to have Shigella flexneri, Shigella boydii, or Shigella sonnei in stool samples.
View Article and Find Full Text PDFEnterohemorrhagic Escherichia coli (EHEC) produce Shiga-like toxins and attach to certain tissue culture cells. T84 cells are human colonic carcinoma cells. Unlike previously studied cell lines, T84 cells grown on collagen-coated surfaces polarize and produce tight junctions and desmosomes, forming a colonic epithelial cell layer in vitro.
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