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Am. J. Trop. Med. Hyg., 80(2), 2009, pp. 263-267
Copyright © 2009 by The American Society of Tropical Medicine and Hygiene

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SHORT REPORT


Prevalence of Neospora caninum and Toxoplasma gondii Antibodies in Northern Egypt

Hany M. Ibrahim, Penglong Huang, Tarek A. Salem, Roba M. Talaat, Mahmoud I. Nasr, Xuenan Xuan, AND Yoshifumi Nishikawa*
National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido, Japan; Genetic Engineering and Biotechnology Institute, Minufiya University, Sadat City, Egypt

 

ABSTRACT

In view of the worldwide importance of Toxoplasma gondii and Neospora caninum and the limited data on the seroprevalence of these parasites in Egypt, this study aimed to estimate the prevalence of anti-T. gondii and anti-N. caninum antibodies in rabbits, cattle, and humans. We used ELISA methods based on surface antigen 2 of T. gondii (TgSAG2t) and surface antigen 1 of N. caninum (NcSAG1t). High seroprevalence of T. gondii (51.49%) was detected in pregnant women, and antibodies to N. caninum were also detected in human samples (7.92%). Anti-T. gondii or N. caninum antibodies were detected in cattle (TgSAG2t: 10.75%; NcSAG1t: 20.43%). In rabbits, only one sample was N. caninum positive (1.85%). The high prevalence of toxoplasmosis and neosporosis in cattle affects the development of the livestock industry and is also an important infective source for human infection in Egypt.

Received May 18, 2008. Accepted for publication September 25, 2008.

Acknowledgments: The authors thank J. P. Dubey (US Department of Agriculture, Agriculture Research Service, Livestock and Poultry Sciences Institute, and Parasite Biology and Epidemiology Laboratory) for supplying the N. caninum NC-1 isolate, local veterinary practitioners for collecting blood samples, and researchers at the Genetic Engineering and Biotechnology Institute (Minufiya University) who helped us during this work. This study was supported by the Egyptian Ministry of High Education and scientific research.

* Address correspondence to Yoshifumi Nishikawa, National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan. E-mail: nisikawa{at}obihiro.ac.jp

Authors’ addresses: Hany M. Ibrahim, Penglong Huang, Xuenan Xuan, and Yoshifumi Nishikawa, Genetic Biochemistry Lab, National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan, Tel: 81-155-49-5886, Fax: 81-155-49-5643, E-mail: nisikawa{at}obihiro.ac.jp. Tarek A. Salem, Roba M. Talaat, and Mahmoud I. Nasr, Genetic Engineering and Biotechnology Institute, Minufiya University, Sadat City, PO Box 79, Egypt, Tel: 2-048-2601262, Fax: 2-048-2601268, E-mail: salem_tarek{at}yahoo.com.






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Copyright © 2009 by the American Society of Tropical Medicine and Hygiene.