- Protostrongylus spp. can block bronchioles in sheep
- Angiostrongylus vasorum live in pulmonary arteries of dogs
- Aelurostrongylus abstrussus in lung parenchyma and small bronchioles of cats
- Filaroides osleri causes infection in trachea
- Metastrongylus spp. in bronchi of pigs
- Muellerius capillaris common parasite of sheep and goats in respiratory infections