Ongoing local transmission of dengue in Japan, August to September 2014

Arima, Yuzo; Matsui, Takeshi; Shimada, Tomoe; Ishikane, Masahiro; Kawabata, Kunio; Sunagawa, Tomimasa; Kinoshita, Hitomi; Takasaki, Tomohiko; Tsuda, Yuichi; Sawabe, Kyoko; Oishi, Kazunori

doi:10.5365/wpsar.2014.5.3.007

Cited by 29 publications

(21 citation statements)

References 5 publications

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“…albopictus. The epidemic curve of the dengue outbreak in YP shows that new human infections were continuing to occur while our mosquito survey was being carried out (27). The epidemiological situation in SCP was nearly identical to that in YP; 2 and 9 dengue cases were reported before and after the mosquito collection of this study, respectively.…”

Section: Resultsmentioning

confidence: 60%

Biting Density and Distribution of <i>Aedes albopictus</i> during the September 2014 Outbreak of Dengue Fever in Yoyogi Park and the Vicinity of Tokyo Metropolis, Japan

et al. 2016

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SUMMARY: A total of 160 autochthonous dengue cases transmitted by Aedes albopictus were reported between August and October of 2014 in Tokyo Metropolis, Japan. Ae. albopictus is a medically important vector of dengue virus, which has expanded its geographic distribution in temperate regions. Understanding the distribution and biting density of Ae. albopictus during the 2014 dengue outbreak in Tokyo is important to evaluate the epidemic risks of dengue fever in other highly populated cities in Europe and Asia. Of the 160 patients, 134 visited the same park (Yoyogi park) located in central Tokyo. Mosquitoes infected with dengue virus were collected from this park, suggesting that it was the exclusive location for the transmission of dengue. This study aimed to collect referential data to estimate the transmission threshold of dengue virus in terms of biting density of Ae. albopictus and determined high transmission risk areas of dengue virus in Yoyogi Park and its vicinity. The overall mean density of biting Ae. albopictus (7.13/man/8 min) was sufficiently high for successful transmission of dengue virus, and areas with biting densities higher than the overall mean density were classified as high risk areas for the transmission of dengue virus in Yoyogi Park.

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Section: Resultsmentioning

confidence: 60%

Biting Density and Distribution of <i>Aedes albopictus</i> during the September 2014 Outbreak of Dengue Fever in Yoyogi Park and the Vicinity of Tokyo Metropolis, Japan

et al. 2016

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“…The first autochthonous case of dengue fever in Japan since 1945 was reported on August 27, 2014, reflecting transmission by Aedes albopictus mosquitoes in Tokyo's Yoyogi Park (540,529 m 2 ) [3]. A total of 159 cases with no history of overseas travel were reported through October 15, 2014, and 127 cases of these infections may have occurred at Yoyogi Park [4].…”

Section: Introductionmentioning

confidence: 99%

“…On August 28, the Tokyo metropolitan government sprayed pesticide in part of the park to kill the vector; traps were placed in 10 locations throughout the park to identify dengue virus-infected mosquitoes. Infected mosquitoes were detected from 4 of the 10 sites, and the metropolitan government closed the northern part of the park on September 4, 2014 [3].…”

Section: Introductionmentioning

confidence: 99%

Estimation of reproduction number and probable vector density of the first autochthonous dengue outbreak in Japan in the last 70 years

Furuya

2015

Environ Health Prev Med

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Both estimated reproduction number and vector density per person at the onset of the epidemic were higher than previously reported values. These results indicate the potential for dengue outbreaks in places with elevated vector density per person, even in dengue non-endemic countries. To investigate the cause of this outbreak, further studies will be needed, including assessments of social, behavioral, and environmental factors that may have contributed to this epidemic by altering host and vector conditions in the park.

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“…Although many advances have been made in reducing the burden of dengue infection, epidemics still occurred worldwide in the last decade (3)(4)(5)(6). For example, an autochthonous dengue outbreak occurred in Japan in 2014 for the first time in 69 years (7,8).…”

Section: Communicated By Masayuki Saijomentioning

confidence: 99%

Dengue Virus Type 1 Strain Isolated in Indonesia Shows a Close Phylogenetic Relation with the Strains That Caused the Autochthonous Dengue Outbreak in Japan in 2014

et al. 2016

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Ongoing local transmission of dengue in Japan, August to September 2014

Cited by 29 publications

References 5 publications

Biting Density and Distribution of <i>Aedes albopictus</i> during the September 2014 Outbreak of Dengue Fever in Yoyogi Park and the Vicinity of Tokyo Metropolis, Japan

Biting Density and Distribution of <i>Aedes albopictus</i> during the September 2014 Outbreak of Dengue Fever in Yoyogi Park and the Vicinity of Tokyo Metropolis, Japan

Estimation of reproduction number and probable vector density of the first autochthonous dengue outbreak in Japan in the last 70 years

Dengue Virus Type 1 Strain Isolated in Indonesia Shows a Close Phylogenetic Relation with the Strains That Caused the Autochthonous Dengue Outbreak in Japan in 2014

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