toxin

[da_bruva at hotmail.com]

regarding this product:


 Pertussis Toxin, Bordetella pertussis
                                                             Size
 Ê
                                                 Ê
 Cat. No. 516560
                                                            50 µg

could you please kindly inform me about the number of organisms present
per ug or present in this formulation.

 most of my refernces quote no or organisms rather than ug...would much
appreciate

regards Dave

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