Seroprevalence of dengue in the general population of Hong Kong

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10 Citations (Scopus)

Abstract

Objectives: To assess the extent of dengue virus exposure in the population. Methods: In this seroepidemiological study, 685 blood samples were collected (from April 2007 to July 2009) from two subject groups: (i) 344 samples from anonymous blood donors of the Hong Kong Red Cross and (ii) 341 samples from healthy volunteers recruited from a university, a community centre and a hospital. Demographic information and travel history were collected for the second subject group. All blood samples were subjected to the PanBio Dengue IgG Indirect ELISA. Results: Anti-dengue virus IgG was detected in 1.6% of the blood samples. Individuals who visited countries in Southeast Asia in the past year were significantly associated with seropositivity (P = 0.03, OR 5.38, CI 1.13-25.54). Conclusions: The overall dengue seroprevalence was 1.6%, and visit to Southeast Asia was the only independent predictor for seropositivity. Although the current situation is not alarming, frequent travel, presence of mosquito vector and emergence of local cases suggest that the risk of dengue virus infection within the local community cannot be overlooked, and continuous vigilance is warranted.
Original languageEnglish
Pages (from-to)1097-1102
Number of pages6
JournalTropical Medicine and International Health
Volume18
Issue number9
DOIs
Publication statusPublished - 1 Sep 2013

Keywords

  • Anti-DV IgG
  • Dengue
  • Hong Kong
  • Seroprevalence

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Infectious Diseases
  • Parasitology

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