Prevalence of avian malaria parasite in mosquitoes collected at a zoological garden in Japan (original) (raw)
Abstract
Several species of captive birds at zoological gardens of Japan were found to be infected with avian Plasmodium. However, incriminated vector mosquito species have not been identified yet. To indicate the competent vectors of avian malaria parasite, we collected mosquitoes at a zoological garden in Japan and examined for the avian malaria parasite DNA. Totally, 1,361 mosquitoes of 11 species were collected in the zoological garden of Kanagawa, the south of Tokyo in Japan in 2005. Captured mosquitoes were pooled by each species, date collected, and location and used for DNA extraction. Eight out of 169 DNA samples were positive for the nested PCR of avian Plasmodium cyt b gene. Estimated minimum infection rates of mosquitoes were 5.9 per 1,000. The PCR positive mosquito species were Culex pipiens group and Lutzia vorax. Some DNA sequences amplified from collected mosquitoes were identical to avian Plasmodium lineages detected from captive birds in the same zoological garden studied. Our results suggest that C. pipiens group and L. vorax could be incriminated vectors of avian malaria parasite transmitting in captive birds kept in the zoological garden in Japan.
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Acknowledgements
This study was partially supported by the Academic Frontier Project “Surveillance and control for zoonoses” and “High-Tech Research Center” Project for Private Universities: matching fund subsidy from Ministry of Education, Culture, Sports, Science and Technology of Japan, Global Environment Research Fund of the Ministry of the Environment of Japan (F-062), and Nihon University Research Grants.
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Authors and Affiliations
- Laboratory of Biomedical Science, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Fujisawa, 252-8510, Japan
Hiroko Ejiri, Yukita Sato, Risa Sawai, Sumie Omori & Masayoshi Yukawa - Laboratory of Wildlife Science, Department of Animal Resource Sciences, College of Bioresource Sciences, Nihon University, Fujisawa, 252-8510, Japan
Emi Sasaki & Koichi Murata - Zoo Department, Yokohama Zoological Gardens, Yokohama, 242-0001, Japan
Rei Matsumoto & Miya Ueda - Department of Medical Entomology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
Yukiko Higa & Yoshio Tsuda
Authors
- Hiroko Ejiri
- Yukita Sato
- Risa Sawai
- Emi Sasaki
- Rei Matsumoto
- Miya Ueda
- Yukiko Higa
- Yoshio Tsuda
- Sumie Omori
- Koichi Murata
- Masayoshi Yukawa
Corresponding author
Correspondence toYukita Sato.
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Ejiri, H., Sato, Y., Sawai, R. et al. Prevalence of avian malaria parasite in mosquitoes collected at a zoological garden in Japan.Parasitol Res 105, 629–633 (2009). https://doi.org/10.1007/s00436-009-1434-9
- Received: 20 February 2009
- Accepted: 24 March 2009
- Published: 08 April 2009
- Issue date: August 2009
- DOI: https://doi.org/10.1007/s00436-009-1434-9