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A Retrospective Epidemiological Study of Tick-Borne Encephalitis Virus in Patients with Neurological Disorders in Hokkaido, Japan
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| Title: | A Retrospective Epidemiological Study of Tick-Borne Encephalitis Virus in Patients with Neurological Disorders in Hokkaido, Japan |
| Authors: | Yoshii, Kentaro Browse this author | | Takahashi-Iwata, Ikuko Browse this author | | Shirai, Shinichi Browse this author | | Kobayashi, Shintaro Browse this author | | Yabe, Ichiro Browse this author →KAKEN DB | | Sasaki, Hidenao Browse this author →KAKEN DB |
| Keywords: | tick-borne encephalitis | | tick | | neurological disorder | | epidemiology | | zoonosis |
| Issue Date: | Nov-2020 |
| Publisher: | MDPI |
| Journal Title: | Microorganisms |
| Volume: | 8 |
| Issue: | 11 |
| Start Page: | 1672 |
| Publisher DOI: | 10.3390/microorganisms8111672 |
| Abstract: | Tick-borne encephalitis (TBE) is a zoonotic disease that usually presents as a moderate febrile illness followed by severe encephalitis, and various neurological symptoms are observed depending on the distinct central nervous system (CNS) regions affected by the TBE virus (TBEV) infection. In Japan, TBE incidence is increasing and TBEV distributions are reported in wide areas, specifically in Hokkaido. However, an extensive epidemiological survey regarding TBEV has not been conducted yet. In this study, we conducted a retrospective study of the prevalence of antibodies against TBEV in patients with neurological disorders and healthy populations in a TBEV-endemic area in Hokkaido. Among 2000 patients, three patients with inflammatory diseases in the CNS had TBEV-specific IgM antibodies and neutralizing antibodies. The other four patients diagnosed clinically with other neurological diseases were positive for TBEV-specific IgG and neutralizing antibodies, indicating previous TBEV infection. In a total of 246 healthy residents in a TBEV-endemic region, one resident had TBEV-specific antibodies. These results demonstrated undiagnosed TBEV infections in Japan. Further surveys are required to reveal the actual epidemiological risk of TBE and to consider preventive measures, such as a vaccine program, for the control of TBE in Japan. |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/80157 |
| Appears in Collections: | 医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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