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***Egg-producing mature worms
 
***Egg-producing mature worms
 
***[[Bronchitis|Bronchitis]] - due to mature worms
 
***[[Bronchitis|Bronchitis]] - due to mature worms
***[[Lungs Inflammatory - Pathology#Verminous pneumonia|Parasitic pneumonia]] - due to aspiration of eggs and larvae -> cellular infiltration of [[Neutrophils|neutrophils]], macrophages, giant cells
+
***[[Verminous Pneumonia|Parasitic pneumonia]] - due to aspiration of eggs and larvae -> cellular infiltration of [[Neutrophils|neutrophils]], macrophages, giant cells
 
**Postpatent phase (weeks 8-12)
 
**Postpatent phase (weeks 8-12)
 
***Majority of worms are expelled
 
***Majority of worms are expelled
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*Two other types of lesion in lung tissue due to this worm have been reported:
 
*Two other types of lesion in lung tissue due to this worm have been reported:
 
**Nodules (2-4mm in diameter) with greenish centres in the reinfection of an immune animal - the host mounting a successful defence and preventing larval migration
 
**Nodules (2-4mm in diameter) with greenish centres in the reinfection of an immune animal - the host mounting a successful defence and preventing larval migration
**Pulmonary oedema and emphysema - thought to be a hypersensitivity response to a massive invasion of larvae in previously- sensitised animals - the gross and microscopic appearance is similar to that of [[Lungs Inflammatory - Pathology#Acute bovine pulmonary emphysema and oedema (ABPEE)|fog fever]]
+
**Pulmonary oedema and emphysema - thought to be a hypersensitivity response to a massive invasion of larvae in previously- sensitised animals - the gross and microscopic appearance is similar to that of [[Acute Bovine pulmonary Emphysema and Oedema|fog fever]]
     
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