Something that's worried me for years, and I might get right royally told it's daft, is the number of people I've spoken to (non-beekeepers) who, through 'kindness' help a tired bee get back on her wings by feeding her bought honey (and I'm guessing there's a lot more imported honey for sale than from the likes of us) fed to it on a spoon. In fact, as a thank you for a jar of honey I gave a neighbour last week, it happened again. This time I was actually presented with a lovely home printed 'poster' of the event taking place, as a thank-you.
Every time it happens or is mentioned (and sometimes just when talking about bees to non-beeks) I bring it up - and explain exactly what the outcome is likely to be - talking of burning colonies clearly shocks people.
Do any of you here think that could be one reason for sporadic outbreaks? Annually repeating offenders (meaning well) could annually reinfect their area again and again of course.
Would be nice if 'Countryfile' type programs could actually provide some useful info now and again, perhaps beginning with that fact.