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#Infective larvae swallowed, pass through alimentary tract, penetrate wall of intestine and migrate via lymphatics → blood circulation → lungs
 
#Infective larvae swallowed, pass through alimentary tract, penetrate wall of intestine and migrate via lymphatics → blood circulation → lungs
 
#Ascend respiratory tree and mature to adult lungworms. Prepatent period 3 and a half weeks
 
#Ascend respiratory tree and mature to adult lungworms. Prepatent period 3 and a half weeks
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*''Dictyocaulus viviparus'' causes [[Respiratory Parasitic Infections - Pathology#Dictyocaulus viviparus|parasitic bronchitis]]
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*''Dictyocaulus arnfieldi'' causes [[Respiratory Parasitic Infections - Pathology#Dictyocaulus arnfieldi|cough in horses]]
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[[Parasitic Bronchitis - Cattle]]
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[[Category:Trichostrongyloidea]]
 
[[Category:Trichostrongyloidea]]
 
[[Category:Cattle_Nematodes]]
 
[[Category:Cattle_Nematodes]]
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