Baseline mapping of severe fever with thrombocytopenia syndrome virology, epidemiology and vaccine research and development

Nathen E. Bopp, Jaclyn A. Kaiser, Ashley E. Strother, Alan D.T. Barrett, David W.C. Beasley, Virginia Benassi, Gregg N. Milligan, Marie Pierre Preziosi, Lisa M. Reece

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations


Severe fever with thrombocytopenia syndrome virus (SFTSV) is a newly emergent tick-borne bunyavirus first discovered in 2009 in China. SFTSV is a growing public health problem that may become more prominent owing to multiple competent tick-vectors and the expansion of human populations in areas where the vectors are found. Although tick-vectors of SFTSV are found in a wide geographic area, SFTS cases have only been reported from China, South Korea, Vietnam, and Japan. Patients with SFTS often present with high fever, leukopenia, and thrombocytopenia, and in some cases, symptoms can progress to severe outcomes, including hemorrhagic disease. Reported SFTSV case fatality rates range from ~5 to >30% depending on the region surveyed, with more severe disease reported in older individuals. Currently, treatment options for this viral infection remain mostly supportive as there are no licensed vaccines available and research is in the discovery stage. Animal models for SFTSV appear to recapitulate many facets of human disease, although none of the models mirror all clinical manifestations. There are insufficient data available on basic immunologic responses, the immune correlate(s) of protection, and the determinants of severe disease by SFTSV and related viruses. Many aspects of SFTSV virology and epidemiology are not fully understood, including a detailed understanding of the annual numbers of cases and the vertebrate host of the virus, so additional research on this disease is essential towards the development of vaccines and therapeutics.

Original languageEnglish (US)
Article number111
Journalnpj Vaccines
Issue number1
StatePublished - Dec 2020

ASJC Scopus subject areas

  • Immunology
  • Pharmacology
  • Infectious Diseases
  • Pharmacology (medical)


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