EKhINOKOKK (Echinococcus granulosus) , yak nav tasmakirmro guyand, ki hangomi boligiash dar rudai sag, gurg, shagol va bazan gurba paraziti mekunad. Darozii badanash 3—5 mm buda, az cap va 3—4 band iborat ast (bandi okhir nisfi badan ast); dar cap 4 jihozi makkanda va 2 chanbari changakchanok dorad. Tukhmi E. bo akhlot az organizmi hayvoni siroyatyofta berun meshavad.
Gov, gusfand, khuk, inchunin odam dar natijai furu burdani tukhmi E. siroyat meyoband; tukhm ba ruda meravad va az on kirmina — onkosfera mebaroyad. Onkosfera az devorai ruda ba venai daromadgohi jigar vorid gashta, tavassuti khun ba uzvho (jigar, bazan shush, mushak, ustukhon va g.) pahn meshavad. Har yak onkosfera hubobchaho hosil mekunad, ki dar devorai on boz 1 yo 2 hubobchai digar ba vujud meoyad. Hubobchaho khele sust inkishof yofta, andozaashon kalon meshavad. Jonvaroni darranda (sag, gurg, shagol, gurba) badi khurdani hafvoni bemor yo murda, ki dar organizmash hubobchahoi E. mavjudand, siroyat meyoband. E. dar odamu hayvon ekhiyaokokkozro ba vujud meorad.