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Gary Thomson gary.thomson at dsto.defence.gov.au
Mon Nov 30 20:48:16 EST 1998

W.R.G. Headley wrote:

> I would be very grateful if anyone could answer any of the following
> questions before Wednesday:
> What is tween and what is its role in the ELISA technique for
> quantitating cholera toxin?
> Why does TCBS agar select for V.cholerae?
> What is the usual treatment for ETEC infections in otherwise healthy
> individuals?
> Thank you.
> Will.

TCBS is suitable for the isolation of most pathogenic vibrios (not just
V. cholerae). the selectivity for vibrios is due to the incorporation of
bile salts and a high pH. Sucrose is present to differentiate the
sucrose fermenting and non fermenting Vibrio spp.

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