Serological evidence of tick-borne encephalitis virus infection in South Korea, 2015–2018

Yoo, Jeong Rae; Oh, Jung Hwan; Lee, Keun Hwa; Song, Sung Wook

doi:10.1016/j.ttbdis.2020.101408

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…Compared to the results in this study, previous serosurvey among farmers in Jeju, South Korea during 2015-2018 reported rather higher seroprevalence (1.3%) of anti-TBE-IgG by ELISA [17]. Most serological assays for TBEV can detect cross-reactive antibodies against other viruses of genus Flavivirus [18].…”

Section: Plos Neglected Tropical Diseasescontrasting

confidence: 87%

Seroepidemiologic survey of emerging vector-borne infections in South Korean forest/field workers

et al. 2021

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With global warming and lush forest change, vector-borne infections are expected to increase in the number and diversity of agents. Since the first report of severe fever with thrombocytopenia syndrome (SFTS) in 2013, the number of reported cases has increased annually in South Korea. However, although tick-borne encephalitis virus (TBEV) was detected from ticks and wild rodents, there is no human TBE case report in South Korea. This study aimed to determine the seroprevalence of TBEV and SFTS virus (SFTSV) among forest and field workers in South Korea. From January 2017 to August 2018, a total 583 sera were obtained from the forest and field workers in South Korea. IgG enzyme-linked immunosorbent assay (ELISA) and neutralization assay were conducted for TBEV, and indirect immunofluorescence assay (IFA) and neutralization assay were performed for SFTSV. Seroprevalence of TBEV was 0.9% (5/583) by IgG ELISA, and 0.3% (2/583) by neutralization assay. Neutralizing antibody against TBEV was detected in a forest worker in Jeju (1:113) and Hongcheon (1:10). Only 1 (0.2%) forest worker in Yeongju was seropositive for SFTSV by IFA (1:2,048) and neutralizing antibody was detected also. In conclusion, this study shows that it is necessary to raise the awareness of physicians about TBEV infection and to make efforts to survey and diagnose vector-borne diseases in South Korea.

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Section: Plos Neglected Tropical Diseasescontrasting

confidence: 87%

Seroepidemiologic survey of emerging vector-borne infections in South Korean forest/field workers

et al. 2021

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“…TBEV circulation over the past decades can be visualized by published maps used to document TBE-endemic areas as a basis for the recommendation to get vaccinated against the disease in Europe (Figure 1). From a few restricted endemic areas in 1999, the TBEV today is known to circulate in Europe and Asia in a belt reaching from the United Kingdom [10] and France [11] in the West to Japan [12][13][14] in the East and from the arctic circle in Norway [15] and Russia down to Northern Italy [16], Bulgaria [17], Kazakhstan [18], China and Korea [19,20] in the south. Comprehensive literature searches revealed circulation of TBEV in ticks in some newly emerging countries (see below), but no similar data from the past were found for a comparison.…”

Section: Tbe Emergencementioning

confidence: 99%

The Changing Epidemiology of Tick-Borne Encephalitis (TBE)

Mahmood¹,

Erber²,

Yi³

et al. 2022

VacciReview

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The study describes the changing epidemiology of tick-borne encephalitis (TBE) based on a literature review. TBE case numbers were obtained from Austria, Germany, and Estonia for incidence calculations and for trend analyses at the county level. Currently, the TBEV is circulating in an area from the United Kingdom and France in the West to Japan in the East and from the arctic circle in Norway and Siberia down to Northern Italy, Kazakhstan and China. Over the last two decades, the TBEV was detected for the first time in Denmark, The Netherlands, the United Kingdom, France, Norway, Japan and also in higher altitudes of previously known endemic regions. TBE case numbers have been fluctuating with huge annual variations in central Europe (Germany, Austria), reaching an all-time high in 2020. Case numbers have been continuously increasing over recent decades in Norway, Sweden and Finland, whereas the TBE-epidemic curve was bell-shaped in 2 Northern-most Baltic States (Latvia, Estonia) with a huge peak in 1995 and 1997. However, the opposite (decreasing) trend was noted in some countries and TBE even disappeared from some previously highly endemic areas. Vaccination has a clear effect on TBE case numbers, which for example dropped from 677 in 1979 to 41 in 1999 (vaccine uptake at that time >80%) in Austria. Incidence rates are an inappropriate tool to predict the risk for TBE in a given region due to a lack of valid surveillance and the unpredictability of the main driver for exposure to the TBEV: human outdoor activities and the risk definition by the European Center for Disease Prevention and Control for arbovirus infections should be used instead.

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Comment on: Serological evidence of tick-borne encephalitis virus infection in South Korea, 2015–2018

Zhang

Sun

et al. 2021

Ticks and Tick-borne Diseases

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Serological evidence of tick-borne encephalitis virus infection in South Korea, 2015–2018

Cited by 5 publications

References 11 publications

Seroepidemiologic survey of emerging vector-borne infections in South Korean forest/field workers

Seroepidemiologic survey of emerging vector-borne infections in South Korean forest/field workers

The Changing Epidemiology of Tick-Borne Encephalitis (TBE)

Comment on: Serological evidence of tick-borne encephalitis virus infection in South Korea, 2015–2018

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