yeah... It is not an ideal situation to say the least. I think that they got too cold on their trip (it was in the high 40's that day) and possibly caught something from my colony (although mine had been issue free for about 1.5 years now).
They are all still on duramycin and only one of the new ones (one of the youngest) is sneezing at all. The others have appeared to clear up, except for the last male in my existing colony. I will finish the course of duramycin and go from there... Hopefully they will all get over this before I go on my trip next week, otherwise, they will have to skip 3 days in treatment while I'm away.