title: Retrospective search for dengue vector mosquito Aedes albopictus in areas visited by a German traveler who contracted dengue in Japan.
abstract: A German traveler developed dengue fever in late August 2013, following a direct flight from Germany. Autochthonous dengue virus (DENV) infection has not been reported in Japan. To evaluate the risk of autochthonous DENV transmission in Japan, the authors performed a retrospective search of the five areas visited by the German patient to determine the population density of dengue vector mosquito, Aedes albopictus. The annual mean temperature of each area was higher than 12°C, which is considered suitable for the establishment of A. albopictus populations. Our retrospective search revealed the population density of A. albopictus to be high in the urban areas of Japan.
authors: National Institute of Infectious Diseases (NIID), Department of Medical Entomology, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan. Electronic address: mutsuo@nih.go.jp.
authors: Mutsuo
authors: M
authors: Kobayashi
authors: National Institute of Infectious Diseases (NIID), Department of Medical Entomology, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan.
authors: Osamu
authors: O
authors: Komagata
authors: Ritsumeikan University, Institute of Disaster Mitigation for Urban Cultural Heritage, Kyoto, Japan.
authors: Mayuko
authors: M
authors: Yonejima
authors: National Institute of Infectious Diseases (NIID), Department of Medical Entomology, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan.
authors: Yoshihide
authors: Y
authors: Maekawa
authors: Shinshu University, Faculty of Textile Science and Technology, Ueda, Japan.
authors: Kimio
authors: K
authors: Hirabayashi
authors: National Institute of Infectious Diseases (NIID), Department of Medical Entomology, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan.
authors: Toshihiko
authors: T
authors: Hayashi
authors: National Institute of Infectious Diseases (NIID), Department of Medical Entomology, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan.
authors: Naoko
authors: N
authors: Nihei
authors: Bio-Research, Osaka, Japan.
authors: Masahiro
authors: M
authors: Yoshida
authors: National Institute of Infectious Diseases (NIID), Department of Medical Entomology, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan.
authors: Yoshio
authors: Y
authors: Tsuda
authors: National Institute of Infectious Diseases (NIID), Department of Medical Entomology, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan.
authors: Kyoko
authors: K
authors: Sawabe
mesh_terms: D000330:Aedes; D000818:Animals; D003715:Dengue / Q000453:epidemiology*; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D007303:Insect Vectors; D007564:Japan; D011156:Population Density; D012189:Retrospective Studies; D013696:Temperature; D014195:Travel
keywords: Aedes albopictus; Autochthonous infection; Dengue; German traveler; Japan; Population density