A retrospective survey of dengue fever among Japanese individuals staying in Manila, Philippines.

Atsuo Hamada,Hidemi Murata,Yuki Tada,Hirohisa Kikuchi,Shinji Fukushima

doi:10.1186/s41182-016-0027-4

Atsuo Hamada, Hidemi Murata + Show 3 more

Open Access

https://doi.org/10.1186/s41182-016-0027-4

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Abstract

Dengue fever is a serious concern for Japanese people staying in Southeast Asia. In order to implement necessary prophylactic measures for dengue fever in this population, we investigated the characteristics of dengue fever among Japanese nationals living in Manila, Philippines. From 2012 to 2015, 175 Japanese expatriates were diagnosed with dengue fever at the medical clinic of the Japanese Association Manila, Inc. Most of the patients were employees of Japanese companies and their families and were long-term residents of Manila. Most patients were either <10 years or in their 30s to 40s. Two patients (1.1 %) were diagnosed with dengue hemorrhagic fever. No deaths due to dengue fever were reported. The reported number of patients with dengue fever has shown a decreasing trend: from 55 cases in 2012 to 53 in 2013, 31 in 2014, and 36 in 2015. The results of this survey could be useful for the development of effective dengue fever preventive measures such as health education and provision of information among not only Japanese but also other foreigners residing in endemic areas.

Highlights

Dengue fever is of concern for Japanese people residing in areas of Southeast Asia
The reported number of patients with dengue fever has shown a decreasing trend: from 55 cases in 2012 to 53 in 2013, 31 in 2014, and 36 in 2015. The results of this survey could be useful for the development of effective dengue fever preventive measures such as health education and provision of information among Japanese and other foreigners residing in endemic areas
During the 4-year study period (January 2012 to December 2015), 175 Japanese patients were diagnosed with dengue fever at the medical clinic of the Japanese Association Manila, Inc. (Table 1)

Summary

Introduction

Dengue fever is of concern for Japanese people residing in areas of Southeast Asia. Prevention of bites from infected vector mosquitoes is strongly recommended to prevent transmission of dengue fever in endemic areas.From 2010 onward, the reported number of imported dengue cases in Japan increased to more than 200 cases per year, primarily due to outbreaks in Southeast Asian countries [1,2,3]. Dengue fever is of concern for Japanese people residing in areas of Southeast Asia. Prevention of bites from infected vector mosquitoes is strongly recommended to prevent transmission of dengue fever in endemic areas. From 2010 onward, the reported number of imported dengue cases in Japan increased to more than 200 cases per year, primarily due to outbreaks in Southeast Asian countries [1,2,3]. In 2014, 162 autochthonous dengue fever cases, probably originating from imported cases, were reported in Tokyo and other areas in Japan [3, 4]. Japanese law requires that all domestically diagnosed dengue fever cases be reported to the Ministry of Health, Labour and Welfare. The epidemiological status of dengue fever in Japanese people residing in endemic regions remains unknown. In order to implement appropriate prophylactic measures for dengue fever, such as health education and provision of information, we

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