Pediatric Infection and Vaccine

The Korean Society of Pediatric Infectious Diseases (대한소아감염학회)
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Seroprevalence of Dengue Virus Antibody in Korea

한국인에서 뎅기바이러스 항체의 혈청 유병률 연구

  • Lee, Ji Hyen (Department of Pediatrics, Ewha Womans University College of Medicine) ;
  • Kim, Han Wool (Department of Pediatrics, Ewha Womans University College of Medicine) ;
  • Kim, Kyung-Hyo (Department of Pediatrics, Ewha Womans University College of Medicine)
  • 이지현 (이화여자대학교 의과대학 소아과학교실) ;
  • 김한울 (이화여자대학교 의과대학 소아과학교실) ;
  • 김경효 (이화여자대학교 의과대학 소아과학교실)
  • Received : 2018.05.28
  • Accepted : 2018.08.23
  • Published : 2018.12.25
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Abstract

Purpose: The number of dengue fever cases is rising due to increasing overseas travel. Vaccination makes severe dengue fever in seronegative individuals after vaccination when they exposure to wild-type dengue virus. We investigated the seroepidemiology of the dengue virus for monitoring of Korean dengue virus immunity and establishing the prevention of dengue infection. Methods: The study was based on 446 residual sera collected from 98 infants (2 months to 1 year old), 152 adolescents (13 to 19 years old), 90 adults (20 to 50 years old), and 106 elderly participants (more than 65 years old) for other studies. Antibody levels for dengue virus immunoglobulin G (IgG) in each age group were measured using an enzyme-linked immunosorbent assay (ELISA). For each dengue virus IgG positive or equivocal result, an IgG ELISA was performed for Japanese encephalitis virus. Results: Of the 446 serum samples, only 1 (0.2%) adolescent had a positive result from the dengue IgG antibody test. In the dengue virus IgG antibody test, 14 (3.1%) samples showed equivocal results (10 adolescents and 4 elderly). In the 1 positive case of dengue virus IgG, the Japanese encephalitis IgG test was also positive. In the 14 equivocal cases of dengue virus IgG, there were 6 positive, 3 equivocal, and 5 negative of Japanese encephalitis IgG. Conclusions: The seroprevalence rate of dengue virus was very low in Koreans. This study provides important data for establishing the policy for preventive measures of dengue fever. It will be necessary to continuously monitor for dengue virus immunity.

목적: 뎅기바이러스 감염 환자 발생은 해외 여행이 증가함에 따라 증가하고 있다. 최근 감염 경험이 없는 사람에게 백신을 접종하면 이후 야생 뎅기바이러스 감염 시 중증 뎅기열 증상을 보일 수 있다고 연구된 바 있다. 따라서, 본 연구는 한국의 다양한 연령군에서 뎅기바이러스에 대한 혈청역학을 연구하였다. 방법: 건강한 영아 98명(2개월-1세), 청소년 152명(13-19세), 성인 90명(20-50세) 및 노인 106명(65세 이상)에서 수집한 혈청 총 446명을 대상으로 하였다. 각 연령군의 뎅기바이러스 immunoglobulin G (IgG) 항체 검사를 ELISA을 통해 측정하였다. 또한 뎅기바이러스 IgG 항체 검사에서 양성 또는 equivocal을 보이는 혈청에 한하여 일본뇌염 바이러스의 IgG 항체를 검사하였다. 결과: 총 446명 검체 중, 청소년군에서 1명(0.2%)만 뎅기바이러스 항체 검사에서 양성으로 나왔다. Equivocal은 14명(3.1%)으로, 청소년군 10명과 노인군 4명이 해당하였다. 뎅기바이러스 IgG 양성이 나온 1명에서 일본뇌염 바이러스 또한 IgG 양성으로 나왔다. 뎅기바이러스 IgG equivocal이 나온 14명에서는 일본뇌염 바이러스 IgG 양성이 6명, equivocal이 3명이었고 음성은 5명이었다. 결론: 한국인에서 뎅기바이러스에 대한 항체 보유율은 매우 낮았다. 본 연구는 향후 뎅기열 예방을 위한 보건 정책 수립에 중요한 자료가 될 수 있을 것이며 향후 지속적인 혈청면역 평가도 필요할 것이다.

Keywords

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