ABSTRACT
This chapter deals with a few selected nematodiases, cestodiases, and trematodiases. Many parasites are acquired by humans from the ingestion of fish, mollusks, and arthropods; and the parasites' endemnicity commonly is associated with cultural and eating habits that have been in practice in populations for generations. People's desire to eat fish uncooked has perpetuated myriad helminthic infections. While most of these parasitoses are reported in Asians, other population groups worldwide acquire infections when they eat fish raw. It has been shown experimentally that freshwater fish can transmit the parasite in the Philippines and Thailand. The best prevention and control of anisakiasis is eating only well-cooked marine fish and squid. The fish tapeworms are among the largest worms to infect humans. They are located in the small intestine and range from 2 to 15 m in length with a maximum width of 20 mm. Two drugs are effective in the treatment of fish tapeworms: niclosamide and praziquantel.
