Severe fever with thrombocytopenia syndrome (SFTS) is emerging in China.SFTS virus (SFTSV) is believed to be transmitted through tick bites and contact with blood or excreta of patients.However,there is no report of aerosol transmission of SFTSV up to date.A cluster of SFTSV infection was identified in May,2014 in southeastern China.A total of 13 cases including 11 confirmed cases 1 clinically diagnosed cases were identified beside the index patient.Of these patients,6 were male and 6 were female,and the median age was 60.5 years old (range,41-74years).The index patient had onset on April 23 and decreased on May 1.The secondary cases had onset from May 10 to May 16 and peaked on May 13.Moreover,8 secondary cases were family members of the index patient and the other 5 cases were neighbors of the index patient.According to epidemiological investigations,Case 1,Case 3,Case4,Case 5,Case6,Case7,Case9,and Case 12 contracted the disease through contact with blood of index patient.Notably,Case 8 and Case 10 didnt have history of contact with blood of index patient,but they stayed in mourning hall for hours.We concluded that aerosol transmission of SFTSV occurred under certain circumstances.