Detection of Escherichia coli heat-stable enterotoxin genes in pig stool specimens by an immobilized, colorimetric, nested polymerase chain reaction.


A combination of selective enrichment by using immunomagnetic separation of F4 (K88)-positive Escherichia coli and a nested colorimetric polymerase chain reaction (PCR) was used on crude clinical and spiked samples for determination of genes encoding heat-stable enterotoxins (STs) Ia (ST Ia) and Ib (ST Ib). The combination increased the sensitivity of the… (More)


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