[log in to unmask] (mailto:[log in to unmask])   writes:

Why  didn't the source colony die at the level that the research colonies 
are  dying?
Exactly, for some reason  the source colony tolerates the high levels  of 
Nosema.  Inoculating other colonies with Nosema spores from this colony  
almost always  kills the test colonies.  We've used macerated bees  with spores, 
macerated bee guts with spores, and centrifuged separations of  spores from 
bee parts - ALL kill the test colonies.
 
Just shows how little we know.  Reason we are testing.
 
Jerry

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