Bob Harrison wrote:
>The hypothesis CCD is something new and not something old has been always
put forth and was based mainly on symptoms.

Robyn Underwood and Dennis van Engelsdorp wrote:
> The losses that have been occurring for over 100 years could be completely
separate events OR part of a cycle of disappearance.

> A recent survey of N. ceranae prevalence in the U.S. has found the
parasite to be widespread and to be in samples collected as far back as
2000. Very recent work has concluded that N. ceranae is not likely the cause
of CCD. 

"Colony Collapse Disorder: Have We Seen This Before?"

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