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  • Title: Morphological characterization of adult Echinococcus granulosus as a means of determining transmission patterns.
    Author: Constantine CC, Thompson RC, Jenkins DJ, Hobbs RP, Lymbery AJ.
    Journal: J Parasitol; 1993 Feb; 79(1):57-61. PubMed ID: 8437058.
    Abstract:
    Host induced changes in morphological characters of the rostellar hooks of Echinococcus granulosus were used to determine the origin of infection in definitive hosts in rural areas of southeastern Australia where wild and domestic cycles of transmission may interact. The morphological characters studied vary depending on the species of intermediate host (macropod marsupials, sheep) in which protoscoleces develop, and these characters are retained in adult worms. It was therefore possible to determine whether definitive hosts (dingoes and foxes) acquired infection by consuming protoscoleces of E. granulosus from macropods or from sheep. The results correlated well with the known distribution of intermediate hosts and illustrate the practical value of such morphological markers in epidemiological studies.
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