Characterisation of an enterotoxin-negative, cytotoxin-positive strain of Free

Abstract

In ileal loop assay, ELISA and anion-exchange column chromatography, strain 6018 was shown to produce a cytotoxin, but no detectable enterotoxin. DNA sequence and polymerase chain reaction analyses indicated that the lack of enterotoxin activity is not due to a lack of gene transcription, but to lack of a major portion of the enterotoxin gene. This is the first characterisation of such a strain.

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1996-01-01
2024-03-28
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