Echinochasmus Perfoliatus

Echinochasmosis is a disease caused by the parasitic helminth Echinochasmus perfoliatus, which belongs to the family Echinostomatidae in the trematode class. This type of helminth is the cause of echinochasmosis in humans in Japan and can also infect definitive hosts such as dogs, cats, pigs and sometimes humans in the small intestine.

Echinochasmosis has a complex life cycle involving several host species. Intermediate hosts are mollusks of the genus Parafossalurus, and additional hosts can be fish, including ide and bream. Parasitic helminths reproduce and develop inside shellfish and are then transmitted to additional hosts, where they can also cause infection.

A person can become infected with echinochasmosis by eating raw or undercooked fish that contain metacystodes of the parasite. Once ingested, metacystodes enter the small intestine where they develop into adult worms. These parasites cause harm by invading the intestinal lining and feeding on blood and nutrients, which can cause a variety of symptoms in infected people.

Symptoms of echinochasmosis may include abdominal pain, nausea, vomiting, diarrhea, fatigue, anemia, and weight loss. In severe cases of infection, complications such as intestinal bleeding may occur.

To diagnose echinochasmosis, laboratory tests of stool are usually performed to detect eggs of the parasite or its fragments. Treatment includes the use of anthelmintics under medical supervision.

Preventative measures are aimed at preventing the consumption of raw or undercooked fish. Fish must be thoroughly thermally processed before consumption.

Awareness of the causative agent of echinochasmosis and precautions when consuming fish play an important role in preventing infection. Educational programs and information campaigns help increase public awareness and reduce the risk of contracting echinochasmosis.

In conclusion, echinochasmosis, caused by the parasitic helminth Echinochasmus perfoliatus, is a disease that can affect the health of people in Japan and other countries. Hygiene measures, proper handling of fish and increased awareness of the risks associated with consuming raw or undercooked fish are important measures to prevent echinochasmosis infection.



Echinochamus perfoliatus (echinochaulosis) is one of the most common helminthiasis diseases in humans. Although this type of helminth is present in different regions of the world, the disease is widespread in Japan, where this type of parasite has been found to be detected in almost all human blood samples taken. It is worth noting that data on echinochasmosis as a serious disease are rare, since the disease is most often perceived as some kind of allergy and a side effect of taking antibiotics. However, echinasmosis must be taken seriously and promptly treated to prevent possible complications.

Echinohacamus perfoliatus is a trematode helminth no larger than 5 mm in size. Like most parasites, the body cavity of Echinochosimus is practically empty, and an elongated bulge is visible in front. Helminth eggs look round, have a grayish-yellow shell and are slightly elongated in length, their size is about 30x20 microns. At the same time, carriers of Echinohaisus can be people who are already infected with parasitic worms. Human hosts are dangerous carriers of parasites and must be protected from infection. In addition, to protect the environment, it is necessary to control the transmission of parasites by animals and fishing nets. To do this, it is recommended to monitor the impact of physical processes and water parameters on the bodies of parasites in order to prevent the possibility of their transfer. Thus, echinocasumosis is a serious disease caused by a parasite from the family Echinostomidae. They differ in their type and location of attack, as well as in different host species. The worms Echinochasmus perfoliatus multiply in parasitic tissues of humans and animals, especially often in cats. As a result of an untreated disease or an incomplete course of therapy, persistent tissue necrosis and ulcerative lesions of intestinal areas are possible.