Kohei Mishima, Hideaki Obara, Masahiro Shinoda, Minoru Kitago, Yuta Abe, Taizo Hibi, Hiroshi Yagi, Kentaro Matsubara, Osamu Itano, Yuko Kitagawa, Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
Kayoko Sugita, Yaoko Takano, Hiroshi Fujiwara, Naoki Hasegawa, Center for Infectious Diseases and Infection Control, Keio University School of Medicine, Tokyo 160-8582, Japan
Takehiko Mori, Division of Hematology, the Department of Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
Satoshi Iwata, Department of Infectious Diseases, Keio University School of Medicine, Tokyo 160-8582, Japan
Author contributions: Mishima K and Obara H wrote this paper; Sugita K performed analysis of blood culture and gene sequence; all other members equally contributed to medical treatment.
Ethics approval: The study was reviewed and approved by the Keio University School of Medicine Institutional Review Board.
Informed consent statement: All study participants, or their legal guardian, provided informed written consent prior to study enrollment.
Conflict-of-interest statement: All authors declare no conflicts of interest.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Hideaki Obara, MD, PhD, Department of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan. email@example.com
Telephone: +81-3-33531211 Fax: +81-3-33554707
Received: March 3, 2015
Peer-review started: March 4, 2015
First decision: April 13, 2015
Revised: May 9, 2015
Accepted: May 21, 2015
Article in press: May 21, 2015
Published online: July 7, 2015