Diphyllobothriasis epidemiology and demographics

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Furqan M M. M.B.B.S [2]

Overview

Diphyllobothriasis occurs in areas where lakes and rivers coexist with human consumption of raw or undercooked freshwater fish. It is particularly common in Japan, Scandinavia, Siberia, with sporadic cases in North and South America.

Epidemiology and Demographics

Diphyllobothriasis is more common in people eating raw or undercooked fish. Infection with the broad fish tapeworm is common in temperate and subarctic regions, wherever freshwater fish are eaten raw, as in Scandinavia, Siberia, the Great Lakes, Japan, central Europe, and Chile.

Prevalance

Worldwide, the prevalence of diphyllobothriasis was estimated in the early 1970s to affect 9 million humans globally. Most of the cases were in Europe and Asia with sporadic cases in America. More recent data indicate that 20 million people are infected worldwide but no recent estimation concerning the global prevalence of this parasitosis has been done.^[1]

Incidence

Diphyllobothriasis is endemic in Japan and 100 cases are reported every year since the 1970s.^[1]

Age

There is no age predilection for diphyllobothriasis.

Gender

There is no gender predilection for diphyllobothriasis.

Race

There is no racial predilection for diphyllobothriasis.

Developed Countries

It is endemic in Japan and Russia. Sporadic cases are reported in Europe and America.^[1]

Developing Countries

Sporadic cases are reported in the developing countries of Asia. NO reports are present to suggest the presence of diphyllobothriasis in Africa.^[1]

References

↑ ^1.0 ^1.1 ^1.2 ^1.3 Scholz T, Garcia HH, Kuchta R, Wicht B (2009). “Update on the human broad tapeworm (genus diphyllobothrium), including clinical relevance”. Clin. Microbiol. Rev. 22 (1): 146–60, Table of Contents. doi:10.1128/CMR.00033-08. PMC 2620636. PMID 19136438.

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[pmid19136438-1] 1.0 ^1.1 ^1.2 ^1.3 Scholz T, Garcia HH, Kuchta R, Wicht B (2009). “Update on the human broad tapeworm (genus diphyllobothrium), including clinical relevance”. Clin. Microbiol. Rev. 22 (1): 146–60, Table of Contents. doi:10.1128/CMR.00033-08. PMC 2620636. PMID 19136438.

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