Nature Materials 9, 572–578 (2010); published online: 23 June 2010; corrected after print: 2 July 2010.

On the first page of the PDF and printed versions of this Letter originally published, the full list of authors and their affiliations should have been included as shown below:

Tomonori Nochi1†‡, Yoshikazu Yuki1†, Haruko Takahashi2, Shin-ichi Sawada2, Mio Mejima1, Tomoko Kohda3, Norihiro Harada4, Il Gyu Kong1, Ayuko Sato1, Nobuhiro Kataoka1, Daisuke Tokuhara1, Shiho Kurokawa1, Yuko Takahashi1, Hideo Tsukada4, Shunji Kozaki3, Kazunari Akiyoshi2 and Hiroshi Kiyono1*

1Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan, 2Department of Organic Materials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan, 3Laboratory of Veterinary Epidemiology, Department of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka 599-8531, Japan, 4PET Center, Central Research Laboratory, Hamamatsu Photonics K.K., Shizuoka 434-8601, Japan. These authors contributed equally to this work. Present address: Division of Infectious Diseases, Center for AIDS Research, University of North Carolina, Chapel Hill, North Carolina 27599, USA. *e-mail: kiyono@ims.u-tokyo.ac.jp.

This has been corrected in the PDF version of this Letter.