How is Echinostoma Ilocanum transmitted?

How is Echinostoma Ilocanum transmitted?

The main source of human infection is large freshwater snails, Pila luzonica (in the Philippines) and Viviparus javanicus (in Indonesia), and rats and dogs are animal reservoir hosts [1]. The principal mode of human infection is consumption of raw or undercooked snails.

What is Echinostoma trivolvis?

trivolvis is a 37-collar-spined trematode (Fried et al., 1997). Like other species of the phylum Platyhelminthes, Echinostoma trivolvis lacks circulatory, respiratory, and skeletal systems (Bush et al. 2001).

How can Echinostoma be prevented?

In human infections, praziquantel is the drug of choice for echinostomiasis. Mebendazole and albendazole have also been shown to have an effect against echinostomiasis. Eating raw or improperly cooked freshwater fish and fresh or brackish water snails should be avoided to prevent echinostome metacercarial infections.

What is the second intermediate host of Echinostoma ilocanum?

ilocanum is the snail Pila conica, which is eaten uncooked in parts of the Philippines. Other sources of infections are clams, tadpoles, frogs, and fish, all serving as second intermediate hosts for echinostomes. Rats, dogs, cats, birds, and other fish-eating animals are reservoirs of infection.

What is cardiac Heterophyiasis how can it be prevented?

heterophyes and M. yokogawai and 20 mg/kg orally 3 times a day for 1 day for N. salmincola. Prevention involves not eating raw or undercooked fish that may contain these intestinal flukes.

What external structure differentiates the adult Echinostoma from other flukes?

Adult Echinostoma have two suckers: an anterior oral sucker and a ventral sucker. They also have a characteristic head collar with spines surrounding their oral sucker. The number of collar spines varies between Echinostoma species, but there are usually between 27 and 51.

What is Heterophyiasis?

Heterophyiasis is infection with the intestinal fluke Heterophyes heterophyes, which is acquired by eating infected raw or undercooked fish from freshwater or brackish water.

What is the definitive host of F Buski?

buski the reservoir hosts include pigs and dogs. Humans acquire infection by consuming contaminated aquatic plants (especially bamboo shoots and water chestnuts for F. buski) or fish (Echinostoma, Metagonimus and Heterophyes).

What is the infective stage of Fasciolopsis Buski?

Fasciolopsis buski: The infectious stage (metacercariae) is found in aquatic plants such as water chestnuts, lotus roots, and water bamboo. Fasciola hepatica: A large liver fluke of sheep that can infect humans through ingestion of a meal that contains infected watercress, chestnuts, or bamboo shoots.

What is the first intermediate host of trematodes?

The life cycle of this parasite resembles that of Opisthorchis species. Aquatic snails serve as the first intermediate host, white sucker (Catostomus commersoni) serve as the second intermediate host, and humans are incidental hosts.

What is cardiac Heterophyiasis?

Heterophyiasis occurs in the Middle East, Far East, and Egypt. The clinical features of the disease include severe and fluctuating abdominal pain and diarrhea. When the eggs of the flukes move into the heart, fatal valvular and myocardial damage may occur.

How is Heterophyiasis treated?

Treatment of heterophyiasis is with praziquantel 25 mg/kg orally 3 times a day for 1 day for H. heterophyes and M. yokogawai and 20 mg/kg orally 3 times a day for 1 day for N. salmincola.

What is the life cycle of a Echinostoma?

The life cycle of Echinostoma is temperature dependent, and occurs quicker at higher temperatures. Echinostoma eggs can survive for about 5 months and still have the ability to hatch and develop into the next life cycle stage.

What is the second intermediate host of echinostome?

The second intermediate host may also be a snail, sometimes the same individual snail that served as the first intermediate host. Due to the large geographic distribution of echinostomes, and the many species present, there are many species of snails that may serve as first or second intermediate hosts.

Are salamanders echinostomes?

Also depending on species, several animals may serve as the second intermediate host, including other snails, bivalves, fish, salamanders, and tadpoles. Echinostomes occur in wildlife and domestic animals worldwide, but human cases are seen most frequently in Southeast and East Asia.

How many suckers does a Echinostoma have?

Adult Echinostoma have two suckers: an anterior oral sucker and a ventral sucker. They also have a characteristic head collar with spines surrounding their oral sucker. The number of collar spines varies between Echinostoma species, but there are usually between 27 and 51.