Dr E. Buxbaum EB15 at
Fri Apr 17 16:50:06 EST 1998

da_bruva at wrote:
> regarding this product:
>  Pertussis Toxin, Bordetella pertussis
>                                                              Size
>  Cat. No. 516560
>                                                             50 µg
> could you please kindly inform me about the number of organisms present
> per ug or present in this formulation.

purified toxins should not have any parent organisms left in them. A
more appropriate source of information than this newsgroup would be the
technical support department of your supplier.

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