>>However, the common finding in all three cases was the presence of a C. botulinum type A organism in environmental samples, including the crib, soils, and 
household dust.

Is there any [well controlled] study that demonstrated that [few or many] b. spores in raw 
honey caused the onset of botulism in a healthy infant while there were no other such 
sources of the b. spores as you mention?

I've done a few designs of experiments in manufacturing using control techniques by 
Taghuchi and others.  It's critical [and definitely not easy] to eliminate all other 
potential causes that can affect the outcome.

Waldemar   

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