Although Japan has no endemic cases of dengue,
the number of imported cases has increased steadily in
recent years with some 245 cases reported in 2010.8 Of
these cases, three travelers from the African continent
(two travelers from Tanzania and one from Benin)
developed dengue fever (DF). In this study, we describe
the clinical and molecular characteristic of a dengue
virus serotype-3 (DENV-3) isolated from a traveler
returning to Japan from the Republic of Benin in 2010.