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Subject:
Re: Nosema ceranae may be historical source of this disease in the U.S.
From:
randy oliver <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Thu, 3 Oct 2013 19:27:38 -0700
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>The results showed that all examined bees were negative for N. apis when
amplified with specific N. apis primer pair.

A more recent study found that the primers used at that time did not
necessarily pick up N apis.  Any PCR results prior to 2013 are suspect.

>
> >The detection of N. ceranae in bees collected a decade ago indicated that
> N. ceranae is not a new emerging pathogen for European honey bees and in
> fact had transferred from its original host to Apis mellifera earlier than
> previously recognized.
>

Seeing as how in the time range of 2007-2010 it was easy to find an absence
of N ceranae in the cooler parts of North America, in Western Australia,
and in some European countries, I would certainly consider it to be an
emerging pathogen.

Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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