The females are ovo-viviparous. The L1 larvae are past out in the faeces. The intermediate host, namely the snail, become infected after penetration of the L1 larvae. These mature and develop into L3 larvae in around 2-3 weeks.
+
The females are ovo-viviparous. The L1 larvae are passed out in the feces. The intermediate host, namely the snail, become infected after penetration of the L1 larvae. These mature and develop into L3 larvae in around 2-3 weeks.
−
The definitive host is infected through ingestion of the snail. The L3 moults in the digestive tract and migrates to the lymph nodes and lungs.
+
The definitive host is infected through ingestion of the snail. The L3 molts in the digestive tract and migrates to the lymph nodes and lungs.