I hope I'm not violating copywrite laws...
In honeybees, hygienic behavior means the detection and
removal of diseased, parasitized, or otherwise nonvital brood
from the brood nest by nurse bees. This behavior helps to
remove brood pathogens from the colony, and therefore, it is
considered a part of the immune response of honeybees (5, 14,
15, 18, 19, 21, 22). In the case of AFB, the removal of diseased
larvae by nurse bees prior to the conversion of the larval
biomass into infectious spores efﬁciently disturbs spore production within the colony,
leading to impaired disease transmission and disease development within the colony. The more
AFB-infected larvae become moribund or even die before cell
capping, the more larvae will be removed by nurse bees as part
of the immune defense and the less ropy mass and fewer
spore-containing foulbrood scales will be produced (Table 1)"