Investigation on mosquitoes and their carried pathogens in the China-Russia border port area of Heilongjiang Province from 2023 to 2024
LIANG Huijie
CAO Lin
CHENG Cheng
WANG Yumei
WANG Sizhe
NIU Lei
ZHANG Jianfeng
HE Jingui
ZHANG Zhiyang
YU Bo
Abstract：Objective To understand the species composition,density,distribution and pathogen carriage of mosquitoes in the China-Russia border ports of Heilongjiang Province during 2023 to 2024,so as to provide reference for the prevention and control of mosquito-borne infectious diseases.Methods From May to October each year of 2023 to 2024,mosquitoes were collected in the operational areas of the ports and forest edges in 14 China-Russia border ports of Heilongjiang Province using light trap method.The samples were tested for Plasmodium,alphavirus and flavivirus by conventional PCR.Results A total of 1 584 light traps were set up in the 14 China-Russia border ports of Heilongjiang Province from 2023 to 2024,capturing 24 658 female mosquitoes,with an average mosquito density of 15.57 mosquitoes per(light·h).Among them,there were 21 363 Aedes vexans(86.64％),followed by Anopheles sinensis(2 620,10.63％).None of the 810 samples tested positive for Plasmodium,alphavirus or flavivirus.Conclusion The dominant mosquito species in the China-Russia border ports of Heilongjiang Province is Ae.vexans.Although Plasmodium,alphavirus and flavivirus have not been detected,the vectors of mosquito-borne infectious diseases are widely distributed in all border ports.Monitoring and testing of mosquitoes and the pathogens should be carried out continuously.
Keywords：mosquitospecies compositionpathogensChina-Russia border port
Publication Date：2026-02-20
Online Publishing Date：2026-04-02(First online date of this platform, not the publication date of the document)
Pages：5( 27-31 )