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Am. J. Trop. Med. Hyg., 71(4), 2004, pp. 441-443
Copyright © 2004 by The American Society of Tropical Medicine and Hygiene

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SHORT REPORT: THE USE OF A POLYMERASE CHAIN REACTION TO DETECT ECHINOCOCCUS GRANULOSUS (G1 STRAIN) EGGS IN SOIL SAMPLES

B. S. SHAIKENOV, A. T. RYSMUKHAMBETOVA, B. MASSENOV, P. DEPLAZES, A. MATHIS, AND P. R. TORGERSON
Institute of Parasitology, University of Zürich, Zürich, Switzerland; Institute of Zoology, Kazakh Academy of Sciences, Academogorodok, Almaty, Kazakhstan

 

ABSTRACT

Cystic echinococcosis is a re-emerging disease in central Asia. A total of 120 soil samples taken from 30 gardens of rural homesteads in southern Kazakhstan were analyzed for the presence of taeniid eggs using a concentration technique. Of these, 21 (17.5%) were shown to be contaminated with taeniid eggs. These isolated taeniid eggs were further analyzed using a polymerase chain reaction specific for the G1 (sheep) strain of the tapeworm Echinococcus granulosus, and five samples were shown to be positive. This study demonstrates the widespread contamination of the environment with E. granulosus eggs in an Echinococcus-endemic area and thus the potential for indirect transmission of E. granulosus to humans from such sources.

Received March 3, 2004. Accepted for publication March 27, 2004.

Financial support: This study was supported by grants from the International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union (nos. 01 500 and 01 505) and the Swiss National Science Foundation (Scientific Co-operation between Eastern Europe and Switzerland Program, no. 7KKPJO65622).

Authors’ addresses: B. S. Shaikenov, A. T. Rysmukhambetova, and B. Massenov, Institute of Zoology, Kazakh Academy of Sciences, Academogorodok, Almaty, Kazakhstan. P. Deplazes, A. Mathis, and P. R. Torgerson, Institute of Parasitology, University of Zürich, Winterthurerstr. 266a, 8057 Zürich, Switzerland, Telephone: 41-1-635-8535, Fax: 41-1-635-8509, E-mail: paul.torgerson{at}access.unizh.ch.






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Copyright © 2004 by the American Society of Tropical Medicine and Hygiene.