a viral disease which affects the larva of honey bees.
(from the article `beekeeping`) Sacbrood is caused by a virus and is superficially similar to the foulbrood diseases. It can appear and disappear spontaneously but is seldom ...
A viral disease affecting the larvae of bees. ... (05 Mar 2000) ... 
a brood disease of honey bees caused by a virus.
a brood disease of honey bees caused by a virus.
Minor disease of bees caused by filterable virus. Conditions look similar to foulbrood, but usually with fewer affected brood cells in spotty locations in brood nest, and occurs predominantly in spring. The larval remains, unlike the foulbrood diseases, do not rot away. Instead, they lay on the bottom of the cell, with the skin turning leathery and...
A lethal disease of larvae of the honey bee, caused by a virus.