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Sentinel Surveillance for International Shigella by a Quarantine Station in Japan

H. Taniguchi, T. Nakano, Y. Katayama, F. Harada, Y. Arai, K. Mori, K. Hirata, K. Kamiya, H. Maruyama and K. Sano
Epidemiology and Infection
Vol. 133, No. 4 (Aug., 2005), pp. 611-615
Stable URL: http://www.jstor.org/stable/3865406
Page Count: 5
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Sentinel Surveillance for International Shigella by a Quarantine Station in Japan
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Abstract

The Japanese quarantine system monitors incoming passengers to detect imported pathogens at international airports. At one airport, we found that 74% of 13315 travellers returning with diarrhoea had visited only one country before entering Japan. On the basis of our results, we hypothesized that the international distribution and potential source of bacterial strains could be inferred by analysing strains isolated from travellers returning to Japan. In order to demonstrate the potential for this system, we randomly selected five Shigella sonnei strains and examined their restriction fragment length polymorphism patterns. One set of strains appeared to be closely related, while three sets, isolated from travellers who visited different countries were possibly related. These results suggest that international distributions and potential sources of S. sonnei may be inferred by monitoring isolates from passengers arriving at a Japanese quarantine station.

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