What does spore count mean? Is higher bad? Here they show higher counts in the healthier bees, implying that they are better able to tolerate nosema whereas bees in the susceptible lines are already dead.

> After artificial infections of the N. ceranae spores, the lineage selected for Nosema tolerance showed a higher N. ceranae spore load, a lower mortality and an up-regulated immune response. 

Survival and immune response of drones of a Nosemosis tolerant honey bee strain towards N. ceranae infections
Qiang Huanga , Per Kryger, Yves Le Conte, Robin F.A. Moritz

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