J Korean Med Sci.  2017 Sep;32(9):1440-1444. 10.3346/jkms.2017.32.9.1440.

Epidemiology and Clinical Characteristics of Zika Virus Infections Imported into Korea from March to October 2016

Affiliations
  • 1Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea. molder@unitel.co.kr
  • 2Division of Public Health Preparedness and Response, Korea Centers for Disease Control and Prevention, Cheongju, Korea.
  • 3Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
  • 4Department of Infectious Diseases, Gangneung Asan Hospital, University of Ulsan College of Medicine, Gangneung, Korea.
  • 5Department of Internal Medicine, Gachon University of Gil Medical Center, Incheon, Korea.
  • 6Department of Infectious Diseases, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea.
  • 7Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.
  • 8Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea.
  • 9Center for Immunology and Pathology, National Institute of Health, Korea Centers for Disease Control and Prevention, Cheongju, Korea.

Abstract

Zika is a re-emerging, mosquito-borne viral infection, which has been recently shown to cause microcephaly and Guillain-Barré syndrome. Since 2015 the number of infected patients has increased significantly in South America. The purpose of this study was to identify the epidemiologic and clinical characteristics of patients with Zika virus (ZIKV) infections in Korea. Patients who had visited areas of risk and tested positive in the ZIKV reverse transcriptase polymerase chain reaction (RT-PCR) in blood, urine, or saliva specimens were included. The first Korean case of ZIKV infection was reported in March 2016, and 14 cases had been reported by October 2016. The median age of the patients was 34 years (19-64 years). Ten patients had been exposed in Southeast Asia and 4 in Latin America. Rash was the most common symptom (92.9%; 13/14), followed by myalgia (50.0%; 7/14), and arthralgia (28.6%, 4/14). There were no neurologic abnormalities and none of the patients was pregnant. Results of biochemical tests were normal. Positivity rates of RT-PCR for ZIKV in serum, urine, and saliva were 53.8%, 100.0%, and 83.3%, respectively in the first week of symptoms. In conclusion, 14 patients with ZIKV infections were reported in Korea by October 2016 and all of them had mild clinical symptoms.

Keyword

Zika Virus; Travel; Virus Shedding; Asia, Southeastern; Latin America; Korea

MeSH Terms

Arthralgia
Asia, Southeastern
Epidemiology*
Exanthema
Guillain-Barre Syndrome
Humans
Korea*
Latin America
Microcephaly
Myalgia
Reverse Transcriptase Polymerase Chain Reaction
Saliva
South America
Virus Shedding
Zika Virus*

Figure

  • Fig. 1 Erythematous rash of ZIKV infection. (A) Rash found on the trunk. (B) Rash found on left arm. ZIKV = Zika virus.


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