1. Division of Systems Virology, Department of Infectious Disease Control, International Research Center for Infectious Diseases, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 1088639, Japan.
2. Laboratory of Systems Virology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto 6068507, Japan.
3. School of Life Sciences, Ecole Polytechnique Federale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
4. Division of Human Genetics, National Institute of Genetics, Mishima 4118540, Japan.
5. CREST, Japan Science and Technology Agency, Kawaguchi, Saitama 3320012, Japan.