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Trichinosis

Trichinella spiralis

worldwide

' Marinkelle, 1980.

« Peters and Gillens, 1982.

' Marinkelle, 1980.

« Peters and Gillens, 1982.

eases and their known endemic areas. The number of humans presently afflicted is staggering (e.g., malaria, schistosomiasis, roundworm, hookworm, and whipworm). Overall estimates for the world are as high as 3 billion people. That would easily make parasitic diseases the world's leading health problem. Though many of these diseases were thought of as a "third world" problem, this is not so anymore. The ease of air travel and large migrations of people into more temperate climates now presents physicians in the so-called developed nations with these "foreign" diseases. Even though most cannot spread there due to absence of vectors, the patients once present must be knowledgeably treated.5

5 The reader should consult Beaver et al., 1984, for detailed information of clinical aspects of parasitology.

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