Yayoi Matsuda, Hisaya Kawate, Yuka Okishige, Ichiro Abe, Masahiro Adachi, Keizo Ohnaka, Naoichi Satoh, Junichi Inokuchi, Katsunori Tatsugami, Seiji Naito, Masatoshi Nomura and Ryoichi Takayanagi*
* Corresponding author: Ryoichi Takayanagi takayana@intmed3.med.kyushu-u.ac.jp
BMC Infectious Diseases 2011, 11:340 doi:10.1186/1471-2334-11-340