Bailey wrote in 1955

... results suggested that transferring colonies to new wax comb foundation was a possible method of controlling Nosema disease. However, providing wax foundation and the necessary food, together with the loss of brood and stores in the old combs, is expensive. Experiments were made, therefore, to see if bees could be transferred to new foundation without feeding, by allowing them to recover stores and brood in the old combs before their removal. It was considered unlikely that stored honey would be contaminated with spores, because defaecation over stores before they are sealed during the summer would normally be unlikely, if the present hypothesis is correct. The infected bee does not regurgitate from the infected mid- gut into the crop; on the contrary, highly efficient mechanism removes particles even smaller than the spores of N. apis from the crop (Bailey, 1952),and the general tendency would therefore be for any infected honey to be decontaminated.

Bailey, Leslie. "THE EPIDEMIOLOGY AND CONTROL OF NOSEMA DISEASE OF THE HONEY‐BEE." Annals of Applied Biology 43.3 (1955): 379-389.

This refers to N. apis, of course. New work would have to be performed to determine if honey is a significant source of nosema spores and/or reinfection

             ***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software.  For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html