Two cases of Zika fever imported from French Polynesia to Japan, December 2013 to January 2014 Kutsuna, S and Kato, Y and Takasaki, T and Moi, M L and Kotaki, A and Uemura, H and Matono, T and Fujiya, Y and Mawatari, M and Takeshita, N and Hayakawa, K and Kanagawa, S and Ohmagari, N, Eurosurveillance, 19, 20683 (2014), https://doi.org/10.2807/1560-7917.ES2014.19.4.20683