Kazuma Yamakawa*, Osamu Tasaki, Miyuki Fukuyama, Junichi Kitayama, Hiroki Matsuda, Yasushi Nakamori, Satoshi Fujimi, Hiroshi Ogura, Yasuyuki Kuwagata, Toshimitsu Hamasaki and Takeshi Shimazu
* Corresponding author: Kazuma Yamakawa k.yamakawa0911@gmail.com
BMC Infectious Diseases 2011, 11:303 doi:10.1186/1471-2334-11-303