Tween?

[jaymone]

Will,

Tween is a surfactant which is routinely used in immunoassays such as
ELISA and western blots.  It disrupts weak non-specific protein-protein
interactions which cause high background.

ETEC infections are treated symptomatically if at all.  In a healthy
adult, ETEC cause nothing more than diarrhea, and are really just a
nuisance.  In children, rehration therapy is recommended to prevent
dehydration and electrolyte imbalances.

I'm not familiar with TCBS agar.

Jay Mone'