the applicability of examining clinical specimens with a dna hybridization technique for genes encoding enterotoxins was examined using enterotoxigenic escherichia coli ( etec ) that produced both heat-labile toxin ( lt ) and heat-stable toxin ( st ) ( 24 isolates ) , etec that produced lt only ( 17 isolates ) , and etec that produced st only ( 22 isolates ) from thailand .
C0014372
enterotoxins
C0040549
st