*Adult worms block small [[Bronchi and bronchioles - inflammatory#Infectious causes of bronchitis or bronchiolitis|bronchioles]] resulting in accumulation of eggs, larvae and cellular debri distal to the blockage | *Adult worms block small [[Bronchi and bronchioles - inflammatory#Infectious causes of bronchitis or bronchiolitis|bronchioles]] resulting in accumulation of eggs, larvae and cellular debri distal to the blockage |