Severe Fever with Thrombocytopenia Syndrome Virus 2025

A special issue of Viruses (ISSN 1999-4915). This special issue belongs to the section "Human Virology and Viral Diseases".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 586

Special Issue Editor


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Guest Editor
1. Medical Affairs Department, Health and Welfare Bureau, Sapporo, Hokkaido, Japan
2. National Institute of Infectious Diseases, Tokyo, Japan
Interests: SFTS; SFTSV

Special Issue Information

Dear Colleagues,

We are still facing a global pandemic of coronavirus disease 2019 (COVID-19) caused by a novel coronavirus, severe acute respiratory syndrome virus coronavirus 2 (SARS-CoV-2). In 2013–2016, there was a huge outbreak of Ebola virus disease (EVD) in West Africa. The global spread of Mpox virus infections, which are endemic to Central and Western Africa, began in 2022 as a form of sexually transmitted disease. It was found that Mpox virus had spilled over from some species of rodents to humans. In the last 30 years, we have identified many novel infectious diseases with a high case fatality rate caused by viruses that spilled over from animals to humans. Severe fever with thrombocytopenia syndrome (SFTS) is one of these emerging viral infections that should be included in this category.

SFTS was reported to be a novel bunyavirus infection by Chinese scientists in 2011. SFTS is a tick-borne viral infection with high morbidity and mortality. SFTS was discovered to be endemic to Japan and South Korea in 2012. The case fatality rate in patients with SFTS in Japan is reported to be approximately 30%. The vectors, which play a role in transmitting the causative agent, Bandavirus dabieense (formally SFTS virus (SFTSV)), include Haemaphysalis longicornis, amongst others. Furthermore, patients with SFTS have been identified in Taiwan, Vietnam, and Thailand, indicating that the endemic area of SFTS is much wider than previously thought.

SFTSV is circulating in nature in Asia including China, Korea, and Japan through transmission of the virus between some species of ticks and mammals. The evidence indicates that SFTS has occurred in the past and will continue to occur in the future. We cannot escape from the risk of being infected with SFTSV, and we are unable to eradicate this virus.

More than 10 years have passed since the discovery of SFTS. We have had some achievements in the elucidation of SFTSV characteristics, clarification of SFTS epidemiology, pathophysiology of SFTS in patients, mechanisms of SFTSV maintenance in nature, and in the development of specific treatments and vaccines. In this Special Issue, we aim to collect recent research and achievements in the study on SFTSV and its infection. We welcome submissions addressing topics including but not limited to the following:

  1. New topics in SFTSV virology;
  2. Epidemiology of SFTS;
  3. Clinical aspects and pathophysiology of SFTS in patients;
  4. Diagnostics of SFTS in humans and animals;
  5. SFTS as a zoonotic disease;
  6. Mechanisms of SFTSV maintenance in nature;
  7. Development of specific treatments for patients with SFTS;
  8. Development of vaccines against SFTS;
  9. Other topics specific to SFTS.

Dr. Masayuki Saijo
Guest Editor

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Keywords

  • SFTS
  • SFTSV
  • emerging viral infections

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Published Papers (1 paper)

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Research

9 pages, 762 KiB  
Article
Seroprevalence and Epidemiological Insights into Severe Fever with Thrombocytopenia Syndrome on Jeju Island, Republic of Korea
by Kye-Hyung Kim, Ahreum Kim, Maengseok Noh, Changhoon Kim, Hyunjin Son, Mee Kyung Ko and Jongyoun Yi
Viruses 2025, 17(4), 466; https://doi.org/10.3390/v17040466 - 25 Mar 2025
Viewed by 235
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tick-borne disease caused by the SFTS virus, posing significant public health challenges in East Asia. This study aimed to evaluate the seroprevalence of SFTS on Jeju Island, Korea, and to identify the demographic and [...] Read more.
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tick-borne disease caused by the SFTS virus, posing significant public health challenges in East Asia. This study aimed to evaluate the seroprevalence of SFTS on Jeju Island, Korea, and to identify the demographic and geographic factors influencing exposure to the virus. A total of 1001 serum samples collected from healthy individuals between 2009 and 2016 were analyzed using a double-antigen enzyme-linked immunosorbent assay. The overall seroprevalence was 1.7%, with slightly higher rates observed in females (2.06%) than in males (1.29%); however, this difference was not statistically significant. Seroprevalence increased with age, peaking at 2.50% in individuals over aged 60 and over. Regional analysis revealed elevated seroprevalence in the eastern coastal areas (4.41%), which was attributed to population density and environmental factors favoring human–tick interactions. These findings suggest that population distribution and land use patterns, rather than altitude alone, significantly affect the exposure of SFTS on Jeju Island. Targeted tick control strategies and public health interventions that focus on high-risk regions and demographics could mitigate SFTS transmission. This study provides valuable insights into the epidemiological characteristics of SFTS and emphasizes the importance of tailored preventive measures in endemic regions. Full article
(This article belongs to the Special Issue Severe Fever with Thrombocytopenia Syndrome Virus 2025)
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