Hi Beesource folks,
I finally added this USDA Bee Breeding Lab ( Baton Rouge) video to YouTube.
It demonstrates VSH behavior: location of infested cell; removal of pupa; disruption of mite's reproducing activity.
Seeing bees with this trait locate and disrupt Varroa Mites is still amazing, years after VSH was first selected for.
Now, VSH behavior has been incorporated into productive populations giving bees and beekeepers
a better chance with the Varroa mite and associated issues.
Here's the video: