What is the international prevalence of tapeworm infestation?

Updated: Apr 15, 2021
  • Author: Lisandro Irizarry, MD, MBA, MPH, FACEP; Chief Editor: Jeter (Jay) Pritchard Taylor, III, MD  more...
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Answer

T saginata has a high endemicity in Latin America, Africa, Middle East, and central Asia and has a moderate endemicity in Europe, south Asia, Japan, and the Philippines.

T solium is prevalent in Latin America, the Slavic countries, Africa, southeast Asia, India, and China. The prevalence of T solium infection is low in northwestern Europe and is rare or absent in Canada. Cysticercosis, caused by infection with the larvae stage of the tapeworm, is endemic in all Latin American countries (except Chile, Argentina, and Uruguay).

Diphyllobothrium infection is prevalent in northern Europe (Finland, east Prussia, Russian Karelia), Canada, Africa, Japan, Taiwan, Manchuria, Siberia, Papua New Guinea, Australia, and South America.

H nana infection is the most common cestode of humans. It is prevalent in areas of poor hygiene and sanitation, especially in the warm and arid countries of the Mediterranean, Indian subcontinent, and South America. The prevalence in children in these areas may reach 20%. Infection rates are highest among children.

E multilocularis infection occurs only in the northern hemisphere, especially in central Europe, Russia, China, Japan, Canada, and north Africa. Few regions in the world are completely free from E granulosis.Echinococcus vogeli and Echinococcus oligarthrus infections occur in Central America and South America.

Infection with Spirometra species has been reported worldwide but especially in east Asia (China, Japan, and Korea) and southeast Asia (Malaysia, India, and the Philippines).


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