Distribution of worm parasites

The spectrum of zooparasites involved here varies from country to country and from climatic region to climatic region. 

The following table by Jawetz, Melnick and Adelberg provides information on the occurrence of a variety of worm parasites. 

In this connection special mention should be made of the disease bilharzia. In the case of bilharzia, the human being is infected by the free cercaria penetrating directly into the human skin. The human being can be infected by standing or bathing in water or by drinking infected water. 

Further details for the identification of tapeworms, threadworms and trema-todes can be taken from L. Hallmann s tables (Klinische Chemie und Mikros-kopie 1980, p. 488 to 497) which are reproduced below. 

Final host apart from human beings 

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