Checked one of my hives today and found a brood disease, so I took some pictures:
Capped brood was healthy, I pulled off some cappings and they seemed alive and healthy.
The dead brood was mostly 5+ days old and uncapped, but there were some with cappings that were apparently chewed open. I saw some of them apparently had become vertical, and died.
The smaller dead brood was dried outlooking, the bigger ones were somewhat vertical - there was a decent amount of variety - and generally brownish not jet black.
I found some relatively small sections of good brood pattern and healthy young brood of a similar age (5+ days) on adjacent frames.
Generally: the brood pattern was spotty and in between capped brood were these relatively small, dried out looking, and brown colored brood.