Opletten bij het verzamelen en bereiden van rauwe wilde planten:Echinococcosis

17-01-2014 14:08

https://www.who.int/mediacentre/factsheets/fs377/en/index.html

 

The life-cycle of Echinococcus granulosus occurs between domestic or wild carnivores, such as dogs, foxes, wolves, jackals, hyenas and cats (definitive hosts), and sheep, goats, cattle, pigs, yaks or other farm animals (intermediate hosts). Cystic echinococcosis is principally maintained in a dog–sheep–dog cycle. Humans are accidental intermediate hosts and become infected through the ingestion of soil, water or food (e.g. vegetables) contaminated with the parasite’s eggs shed in the faeces of the carnivores. Humans can also be infected by hand-to-mouth transfer of eggs after contact with the contaminated fur of a carnivore (most commonly, a dog).

Carnivores become infected when they ingest the organs of intermediate hosts that harbour the larval stages of the parasite (hydatids, or hydatid cysts). In the carnivore, the cysts develop into adult worms and live in the intestines where they produce eggs that are passed in the faeces, contaminating the ground. Intermediate hosts ingest eggs in the contaminated ground, the eggs develop into cysts, and the cycle continues.

Transmission of E. multilocularis to humans occurs through ingestion of soil, food or water contaminated with the parasite’s eggs shed in the faeces of foxes and other canids, including domestic dogs and, to a lesser extent, cats. Humans may also become infected by hand-to-mouth transfer of eggs after contact with the contaminated fur of foxes, dogs or cats. Intermediate hosts are small mammals (rodents and lagomorphs).

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