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  • Title: Identification of low levels of heat labile enterotoxin in Escherichia coli from children with diarrhoea.
    Author: Otnaess AB, Halvorsen S.
    Journal: Acta Pathol Microbiol Scand B; 1981 Jun; 89(3):173-7. PubMed ID: 7032200.
    Abstract:
    Out of 40 children with gastroenteritis and massive growth of E. coli in faeces, 7 yielded growth of E. coli strains producing heat-labile enterotoxin (LT), as identified by enzyme-linked immunosorbent assay (ELISA) using anticholera toxin coated plates or ganglioside coated plates. The toxin production in vitro was low, and decreased upon subculturing for 3 months in the laboratory. Only two of the strains were identified as LT-positive by the YI adrenal cell test. In addition, an LT-producing strain was isolated from an adult who had recently returned from Jordan. Sonication of the strains after subculturing released cell-bound LT. The clinical importance of such low toxin producing E. coli strains is not known.
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