- Also known as lungworm disease or verminous pneumonia or dictyocauliasis.
- Adult parasites remain in trachea, bronchi and bronchioles and embedded in mucosa.
- Eggs are laid and swallowed with cough.
- Hatch to produce larvae that come with faeces.
- Third stage larvae are ingested by susceptible animal and penetrate the intestinal wall and migrate to lymph nodes.
- Develop 4th stage larvae.
- By way of lymphatics and pulmonary artery, they enter in bronchioles and bronchi to cause lung lesions.
- Characteristic Symptoms are Hacking cough with dyspnea, Diarrhoea and Retarded growth.
For more details please download the attachment- PPT.