AJTMH Transactions of the Royal Society of Tropical Medicine and Hygiene
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Am. J. Trop. Med. Hyg., 75(5), 2006, pp. 869-870
Copyright © 2006 by The American Society of Tropical Medicine and Hygiene

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SHORT REPORT


HUMAN TRYPANOSOMIASIS CAUSED BY TRYPANOSOMA EVANSI IN A VILLAGE IN INDIA: PRELIMINARY SEROLOGIC SURVEY OF THE LOCAL POPULATION

VIJAY R. SHEGOKAR, RAJARAM M. POWAR, PRASHANT P. JOSHI, ARADHANA BHARGAVA, VIBHAWARI S. DANI, RAVINDRA KATTI, VASANT R. ZARE, VITHHALRAO D. KHANANDE, JEAN JANNIN, AND PHILIPPE TRUC*
Department of Microbiology, and Department of Medicine, Government Medical College, Nagpur, India; Directorate General of Health Services, Mumbai, India; Innovative and Intensified Disease Management, Neglected Tropical Diseases Control, Communicable Diseases, World Health Organization, Geneva, Switzerland; Unité de Recherche 117 Trypanosomoses Africaines, Institut de Recherche pour le Développement, Luanda, Angola

 

ABSTRACT

After discovery of the first recorded case of human infection with Trypanosoma evansi, serologic screening of 1,806 persons from the village of origin of the patient in India was performed using the card agglutination test for trypanosomiasis and T. evansi. A total of 410 (22.7%) people were positive by whole blood, but only 81 were confirmed positive by serum. However, no trypanosomes were detected in the blood of 60 people who were positive at a high serum dilution. The results probably indicate frequent exposure of the human population to T. evansi in the study area, which suggests frequent vector transmission of parasites to humans. Although T. evansi is not infective for humans, a follow-up of seropositive persons is required to observe the evolution of human infection with this parasite.

Received May 27, 2006. Accepted for publication June 27, 2006.

Acknowledgments: We thank Dr. S. Salunke (Director of Directorate General of Health Services, Maharashtra State, India) for his assistance and Dr. W. Gibson (University of Bristol, Bristol, United Kingdom) for critically reading the manuscript.

Financial support: This study was supported by Directorate of Health Services, Maharashtra State, India, the World Health Organization and the Institut de Recherche pour le Développement, France.

* Address correspondence to Philippe Truc, Unité de Recherche 117 Trypanosomoses Africaines, Institut de Recherche pour le Développement, Ambassade de France, CP 584, Luanda, Angola. E-mail: truc{at}ird.fr

Authors’ addresses: Vijay R. Shegokar, Rajaram M. Powar and Aradhana Bhargava, Department of Microbiology, Government Medical College, Nagpur, India, Telephone: 91-942-210-2658, Fax: 91-712-223-6653. Prashant P. Joshi and Vithhalrao D. Khanande, Department of Medicine, Government Medical College, Nagpur, India, Telephone: 91-982-222-5504 and 91-712-256-5621, Fax: 91-712-274-4000 and 91-712-274-4489. Vibhawari S. Dani, Government Medical College, Nagpur, India, Telephone: 91-982-222-7317, Fax: 91-712-274-4489 and 91-712-274-6682. Ravindra Katti and Vasant R. Zare, Directorate General of Health Services, Maharashtra State, Mumbai, India, Telephone: 91-222-2621-0006, Fax: 91-222-262-2155. Jean Jannin, Communicable Diseases Control, Prevention and Eradication, World Health Organization, 1211 Geneva 27, Switzerland, Telephone: 41-22-791-3779, Fax: 41-22-791-4893. Philippe Truc, Unité de Recherche 117 Trypanosomoses Africaines, Institut de Recherche pour le Développement, Ambassade de France, CP 584, Luanda, Angola, Telephone: 244-222-330-065, Fax: 244-222-397-431, E-mail: truc{at}ird.fr.

Reprint requests: Philippe Truc, Institut de Recherche pour le Développement, Unité de Recherche 117 Trypanosomoses Africaines, Ambassade de France, CP 584, Luanda, Angola.






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Copyright © 2006 by the American Society of Tropical Medicine and Hygiene.