Determination of viral etiology of Dengue, Zika and Chikungunya on the suspected cases in the surveillance in Ha Noi and Nam Dinh, 2017-2018

Authors

  • Nguyễn Thùy Linh National Institute of Hygiene and Epidemiology, Hanoi
  • Trần Thị Minh Tâm National Institute of Hygiene and Epidemiology, Hanoi
  • Vũ Trọng Dược National Institute of Hygiene and Epidemiology, Hanoi
  • Trần Hải Sơn National Institute of Hygiene and Epidemiology, Hanoi
  • Phan Hà Mỵ National Institute of Hygiene and Epidemiology, Hanoi
  • Nguyễn Tuấn Anh Center for Disease Control, Nam Dinh province
  • Đỗ Đức Lưu Center for Disease Control of Nam Dinh province
  • Nguyễn Thị Kiều Anh Center for Disease Control, Hanoi
  • Nguyễn Nhật Cảm Center for Disease Control, Hanoi
  • Trần Vũ Phong National Institute of Hygiene and Epidemiology, Hanoi
  • Nguyễn Thị Lan Anh National Institute of Hygiene and Epidemiology, Hanoi

DOI:

https://doi.org/10.51403/0868-2836/2020/191

Keywords:

Arbovirus, chikungunya, dengue, zika, IgM, serotype

Abstract

The retrospective cross-sectional study was conducted in Hanoi and Nam Dinh from January 2017 to July 2018 to determine the etiology of Dengue, Chikungunya and Zika virus on the suspected cases. A total of 463 suspected cases in the survey in Hanoi (200 cases) and Nam Dinh (263 cases) were selected for the study. The prevalence of Dengue infection was 51.5% (103/200) in Hanoi and 32.7% (86/263) in Nam Dinh. The rates of Dengue RNA detection in seropositive groups were 5.8% and 9.3% in Hanoi and Nam Dinh, respectively. On both study sites, only Dengue serotype 1 was detected. In Dengue-seronegative groups, the serology testing showed that anti-Zika IgM positive rate was 2.1% in Hanoi (2/97) and 0.6% in Nam Dinh (1/177). Among Dengue and Zika-seronegative cases, the antiChikungunya IgM positive rate was 0% (0/95) in Hanoi and 3.4% (6/176) in Nam Dinh. RNA Zika and Chikungunya were not detected in sero-positive cases. Thus, Degue virus is still the predominant etiology in the suspected cases for dengue fever (40.8%, 189/463). Zika and Chikungunya etiologies just covered a very low rate among the cases without Dengue infection. Further studies to investigate the viral etiology in the suspected cases not infected by Dengue virus should be conducted.

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Published

27-04-2021

How to Cite

Linh, N. T. ., Tâm, T. T. M., Dược, V. T. ., Sơn, T. H., Mỵ, P. H. ., Anh, N. T. ., Lưu, Đỗ Đức ., Anh, N. T. K. ., Cảm, N. N., Phong, T. V. ., & Anh, N. T. L. . (2021). Determination of viral etiology of Dengue, Zika and Chikungunya on the suspected cases in the surveillance in Ha Noi and Nam Dinh, 2017-2018. Vietnam Journal of Preventive Medicine, 30(6), 160–169. https://doi.org/10.51403/0868-2836/2020/191

Issue

Section

Original Papers

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