Thanks very much  Rusty, for your input on my question regarding the viability of DWV.  I understand your point- that up to now it has not been of much concern on its own,and that there is a background level of infection always present, and there is therefore a low likelihood of recurrence without varroosis. However,  I feel strongly that I have seen a higher susceptibility in my hives at times, and that it  it has proved fatal in a number of cases- possibly independent of mite levels. I feel that it is possible that I am seeing a more virulent strain. I had a similar experience with CPBV, another virus not know to spread much on its own in an apiary, but found this not to be so- it does in fact spread, and proved fatal to a number of hives. Therefore- I was curious to know if there was some more science regarding the viability of this specific virus. How long does it survive off its host? I would assume that is a known fact? . I am not sure I understood the significance of Peter's comment on chalk brood, but was looking for guidance on how others might be dealing with DWV infections in dead outs, and if they were just reintroducing dead out equipment into their operations, or taking time to sterilize or destroy it.

I would still be interested in  anyone's practice in dealing with this, if in fact anyone does. 

Thank you,

Matthew

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