Hi Garth
 
Thank you very much for this information. Is good to have scientific
prove of your supposition.
 
> I did however find that there are a reasonable number of organisms
> living in different hives, including E.coli on broodsurfaces(I gather
> maybe from human contactinfecting them), and certain filamentous
> yeasts. (Candida's)
>
> The level of contamination would be about the same I would estimate
> as a hand which has been  recently  washed with a non-disinfectant
> soap.
 
It will be interesting if you could done the same tests for different
type of propolization, especialy for non propolised hives.
 
Costel