host

Man is an accidental host in the life cycle of Echinococcus granulosus.

Man serves as an accidental host. Human ophthalmomyiasis occurs mainly in places where density of sheep is relatively low compared to human.

The parasite has a "dog-sheep" cycle with man as an intermediate accidental host. Human infection occurs by ingestion of the eggs of Echinococcus inadvertently with food, especially unwashed vegetables and water contaminated with faeces from infected dogs or by a direct contact with a dog.

(Accidental host is frequently used, but this is arguably a teleological term and therefore undesirable.) For incidental hosts that transmit pathogens from a reservoir to another incidental host, analogous to a pipe leading from a water reservoir, Garnham (4) coined the useful term "liaison host."

Humans in close contact with livestock, sheep in particular, are at higher risk to become accidental hosts for the O.

Humans are accidental hosts; rodents are generally asymptomatic and may excrete the virus in their urine, saliva, and feces for months.

Humans are accidental hosts and get infected by ingestion of embiyonated eggs, which then hatches in the small intestine and releases an oncosphere that moves to the circulatory system by penetrating small intestine wall and gets lodged in different organs, in particular liver and lungs.

Humans are its accidental hosts. After ingestion of contaminated water or aquatic plants containing metacercariae, juveniles penetrate the intestinal wall and migrate through the peritoneal cavity to the liver and then enter the bile ducts, and rarely to the gallbladder, where they mature and release eggs.

It is round or oval 2-3 m in diameter and aflagellate.1 Commonly the infection is zoonotic human beings being accidental hosts. However human beings can be reservoirs in an anthroponotic cycle .

Humans are accidental hosts. The disease is not directly transmitted from person-to-person and only the infected larval stage can transmit the disease.