Infection status of tick-borne encephalitis virus and Alongshan virus in tick-bite patients in Harbin from 2022 to 2023
Objective To explore the infection of tick-borne encephalitis virus(TBEV)and Alongshan virus(ALSV)in tick bites patients in Harbin from 2022 to 2023 in the General Hospital of Forest Industry of Heilongjiang Province.Methods Through epidemiological studies and phylogenetic tree construction,the prevalence of TBEV and ALSV was investigated based on the detection data of tick bitten people in Heilongjiang Red Cross Sengong General Hospital from 2022 to 2023.Results From 2022 to 2023,there were 159 tick bite patients in Harbin who visited Heilongjiang Red Cross Sengong General Hospital.Acheng District and Bin County had more tick-bite people in Harbin,accounting for 30.19％(48/159)and 16.35％(26/159)of all Harbin tick-bite people,respectively.In Songbei District,Daowai District,Daoli District,Nangang District and Xiangfang District,which are the main urban areas of Harbin,7,1,3,7 and 7 people were bitten by ticks and went to Heilongjiang Red Cross Sengong General Hospital for treatment,respectively.The prevalence of TBEV and ALSV in these patients was 37.74％(60/159)and 10.06％(16/159),respectively.The subtype of TBEV prevalent in Harbin was TBEV-FE.Conclusions There is a risk of tick bites in the Harbin area,both in the city and in the surrounding counties,and can be infected with TBEV and ALSV.In addition to TBE and ALS,other tick-borne diseases,such as Lyme disease and spotted fever,may be prevalent in the Harbin area,and there is a need to strengthen the monitoring of the prevalence of tick-borne diseases in the Harbin and to widely publicize knowledge on the prevention of tick-borne diseases.
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