| characterization of diarrheagenic escherichia coli isolated from food in khon kaen, thailand. | four categories of 186 ready-to-eat food samples in khon kaen municipality, thailand, were collected and investigated for fecal contamination by enumeration of escherichia coli using the most probable number (mpn) method. then, the e. coli isolates were presumptively identified as diarrheagenic e. coil by agglutinating with polyvalent o-antisera and monovalent o-antisera commonly found in diarrheagenic strains and were subsequently investigated for the presence of the recognized virulence genes ... | 2005 | 16295548 |