>
>
> > ANY EVIDENCE THAT MOST HIVES HAVE SOME AFB SPORES, OR THAT BEES CAN
> > TOLERATE A LOW LEVEL, WOULD BE GREATLY APPRECIATED.
>

"These findings confirm earlier findings of Hansen
and Rasmussen (1986) that the presence of P. larvae in an apiary does not
necessarily
mean that the larvae become clinically ill."

Apidologie 32 (2001) 587-599
Influence of the proximity of American foulbrood cases and apicultural
management on the prevalence of Paenibacillus larvae spores in Belgian
honey.  Dirk C. de Graaf

See also
http://www.culturaapicola.com.ar/apuntes/sanidad/315_Loque_americana.pdf


Randy Oliver
Grass Valley, CA
ScientificBeekeeping.com

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