E. vogeli Infection, French Guiana | CDC EID

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Volume 15, Number 12–December 2009
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Echinococcus vogeli Infection in a Hunter, French Guiana
Jenny Knapp,1 Mircea Chirica, Christine Simonnet, Frederic Grenouillet, Jean-Mathieu Bart, Yasuhito Sako, Sonoyo Itoh, Minoru Nakao, Akira Ito,1 and Laurence Millon1
Author affiliations: Université de Franche-Comté, Besançon, France (J. Knapp, F. Grenouillet, J.-M. Bart, L. Millon); Asahikawa Medical College, Asahikawa, Hokkaido, Japan (J. Knapp, Y. Sako, S. Itoh, M. Nakao, A. Ito); Saint-Louis Hospital, Paris, France (M. Chirica); Pasteur Institute of French Guiana, Cayenne, French Guiana (C. Simonnet); and World Health Organization Collaborating Center for Prevention and Treatment of Human Echinococcosis, Besançon (J. Knapp, F. Grenouillet, L. Millon)

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Abstract
Echinococcus vogeli infection in a hunter from the rain forest of French Guiana was confirmed by imaging and mitochondrial DNA sequence analysis. Serologic examination showed typical patterns for both alveolar and cystic echinococcosis. Polycystic echinococcis caused by E. vogeli may be an emerging parasitic disease in Central and South America.

Echinococcosis is one of the most lethal helminthic zoonoses worldwide. The 4 species of the genus Echinococcus are E. granulosus sensu lato, now including 5 independent species (1,2), which causes cystic echinococcosis (CE); E. multilocularis, which causes alveolar echinococcosis; E. vogeli, which causes polycystic echinococcosis (PE); and E. oligarthrus, which causes the recently described unicystic echinococcosis (3–6). Among these species, E. oligarthrus and E. vogeli are neotropical species localized exclusively in Central and South America (5,6). Only 3 cases of E. oligarthrus infection have been reported in the literature (1 from Brazil, 1 from Venezuela, and 1 from Surinam); 168 E. vogeli cases have been reported in 12 countries in Central and South America. To date, there have been no reports of neotropical echinococcosis in Bolivia, Paraguay, Guyana, or French Guiana (5,6). E. granulosus occurs sympatrically in South America, whereas E. multilocularis does not occur there at all (3,5). As both E. vogeli and E. oligarthrus have primarily sylvatic life cycles and the diagnosis is usually based on histopathologic examination of resected lesions, the number of human cases might be underestimated because of the small number of patients who receive surgical treatment (5,6). We report a case of human infection from French Guiana caused by E. vogeli.

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