Jpn. J. Infect. Dis., 65 (3), 277-278, 2012

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¹Department of Infectious Diseases and Applied Immunology, and ⁴Department of Laboratory Medicine, Research Hospital of The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639; and ²Division of Infectious Diseases, Advanced Clinical Research Center, and ³International Research Center for Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan

Communicated by Makoto Ohnishi

(Accepted April 28, 2012)

*Corresponding author: Mailing address: Department of Infectious Diseases and Applied Immunology, Research Hospital of The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan. Tel: +81-3-5449-5338, Fax: +81-3-5449-5427, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.