Is fish a secondary host of tape worm?

Yes, fish can serve as secondary hosts for certain types of tapeworms. In the life cycle of these parasites, adult tapeworms typically reside in the intestines of definitive hosts, such as mammals, and release eggs that can contaminate water sources. When fish ingest these eggs or larvae, they can become infected, serving as an intermediate host until they are consumed by a definitive host, where the tapeworm can further develop.