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Dipylidium, otherwise known as the Double Pore Tapeworm.

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Darchelle Curry 10/17/01 Zoology Period H Dipylidium From the list of endoparasites, I have chosen to learn more about Dipylidium. The common name for Dipylidium is the Double Pore Tapeworm. Dipylidium is in the Animalia kingdom, the phylum Platyhelminths, the class Cestoda, the order Cyclophyllidea, and the family Dipylidiidae. It has the genus Dipylidium, and the species caninum. Dipylidium is an intestinal parasite that is most commonly found in dogs and cats. Rarely, a dog or cat will pass the tapeworm to a human. Infection from Dipylidium is found all over the world. It is the most common tapeworm of dogs and cats in the United States. Human infections have been recorded in Europe, the Philippines, China, Japan, Argentina, and the United States. ...read more.


The parasite uses its scolex to attach itself to the small intestine of its host. It resides there and absorbs the digested or partly digested material available in its new home. As the tapeworm grows, it produces proglottids (or segments). The tapeworm gets its common name because each of these proglottids have two genital pores. The adult tapeworms can measure up to sixty centimeters in length and three millimeters in width. When the proglottids are mature, they become ripe and detach from the tapeworm. The ripe proglottids, then, migrate to the anus and are passed out, once again, through the animal's feces. From there, the entire life cycle repeats itself by starting again with the intermediate host. ...read more.


If the animal is heavily infected, weight loss may occur. And occasionally, the Dipylidium tapeworm will remain attached to the intestinal wall but will become so long that some of the proglottids move into the stomach. This will irritate the stomach, causing the animal to vomit. When the Dipylidium tapeworm infects humans, it can cause restlessness, abdominal pains, and painful bowel movements. There is treatment of the Dipylidium tapeworm available for both humans and animals. In humans, a prescription drug called praziquantel is given orally. And in animals, praziquantel is given by injection. This drug causes the Dipylidium tapeworm to dissolve inside the intestine. Because the tapeworm is usually digested before it is excreted, it may not be visible in the animal's feces. ...read more.

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