Abstract：Abstract：Sever fever with thrombocytopenia syndrome virus (SFTSV) is a novel virus discovered in recent years. Sever fever with thrombocytopenia syndrome (SFTS) is caused by SFTSV infection, characterized by high fever, thrombocytopenia, leukopenia and multiple organ function damage, with a mortality rate of 5%-30%. There is no proven effective antiviral drugs and vaccine available now. SFTSV infection can cause immune dysfunction in patients, and B lymphocytes are one of the important target cells for SFTSV infection, but the impact of SFTSV infection on B lymphocyte function is still unclear. This article reviews research on the abnormalities and underlying mechanism of B lymphocyte functions caused by SFTSV infection, so as to promote the research progress of the immunopathological mechanism of SFTSV infection, providing a basis for a deeper understanding of the impact of SFTSV infection on B lymphocytes and the development of related diagnostic and therapeutic technologies.
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