This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
Dracunculosis infection occurs through - 
Select and explain. 
A. Ingestion of water containing cyclops, B. Ingestion of water containing the parasite, C. Ingestion of fish, D. Penetration of skin
A: Ingestion of water containing cyclops
Answer: A: Ingestion of water containing cyclops 
Explanation: Humans are the definitive host and cyclops are the intermediate host.The adult female worm discharges larvae which are ingested by the intermediate host the cyclops.Humans become infected by drinking unfiltered water containing infective cyclops (refer pgno:175 baveja 3 rd edition)