Gavin Ramsey asked
"Is this a possible route for the rapid dissemination of spore-dispersed 
pathogens worldwide?"

It sure is. Chinese pollen inadvertently fed to bees, is believed to have 
been the route by which Chalkbrood came to Western Australia, despite very 
stringent biosecurity controls.

Peter Detchon
Western Australia

****************************************************
* General Information About BEE-L is available at: *
* http://www.honeybeeworld.com/bee-l/default.htm   *
****************************************************