Distribution of ticks and the carrying status of Dabie bandavirus and Rickettsia in Nantong
YUAN Jianming
ZHAI Yunpeng
JIAO Xueli
ZHANG Xin
SU Jing
Abstract：Objective To investigate the distribution characteristics of ticks and the presence of Dabie bandavirus and Rickettsia in Nantong City,so as to provide the foundation for the prevention and control of tick-borne diseases.Methods Seven towns(blocks)were selected as the monitoring sites in Nantong from 2022 to 2023.Off-host ticks were captured by flagging method,and on-host ticks were collected by surface detection method.After tick species identification,the nucleic acids of Dabie bandavirus and Rickettsia were detected using RT-qPCR and qPCR,respectively.Results Three species of Haemaphysalis and one species of Rhipicephalus were found.The dominant species found both on and off hosts was Haemaphysalis flava,followed by Haemaphysalis longicornis.The average density of off-host ticks was 0.36 ticks/(flag·100 m),the average infestation rate of ticks on domestic animals was 9.80％,and the average tick index was 0.16 ticks per host.Out of 48 groups of tick samples,3 groups were tested positive for Dabie bandavirus nucleic acid,with a positive rate of 6.25％.Rickettsial infection was detected in 28 groups,with a positive rate of 58.33％.Conclusion Ticks are commonly found in the fields and surrounding environments of residential areas in Nantong,and can be easily spotted on the bodies of domestic animals.Ticks have a risk of transmitting Dabie bandavirus and Rickettsia,so the surveillance should be strengthened.
Keywords：off-host tickson-host ticksSFTSDabie bandavirusRickettsiamigratory birds
Publication Date：2024-06-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 272-276 )