We Have been free of this disease but it was first diagnosed in an area of my country around 2 years ago, but not where I am.

Anyhow we are just getting past the worst of winter here, and both myself and other beekeepers near me are getting unexplained cases of large numbers of dead and near dead bees laying around the outside of some, but not all, hives in an apiary. It is not typical of the way they die from mites, I am wondering if it could be cerana, but hoping some of you guys could give me a good explanation how things look when they die of cerana.

What we've got, is no poop or diarhea on the hive, bees dead or near dead, the near dead ones fairly lethargic. No distended abdomens, but often the bees have the abdomen slighly curved downwards plus wings spread apart and slightly downwards. Actually, next time I see this I will get a pic. BTW trachaeal mites have never been found in my country, despite regular random bee samples being lab tested by the government.