Investigation of Bandavirus dabieense carried by Haemaphysalis longicornis in Yantai City, Shandong Province, from 2023 to 2024
10.3969/j.issn.1005-0507.2025.04.004
- VernacularTitle:2023—2024年山东省烟台市长角血蜱携带大别班达病毒调查研究
- Author:
Long-jie XIAO
1
;
Ting WANG
2
;
Yi-min YANG
3
;
Jing SUN
4
;
Chun-hui LI
2
;
Cheng-juan LIU
2
;
Hui-min ZHANG
1
;
Pei-jun GUO
5
Author Information
1. School of Public Health, Binzhou Medical College, Yantai 264000, Shandong, China
2. Yantai Center for Disease Control and Prevention, Yantai 264000, Shandong, China
3. Zhaoyuan Center for Disease Control and Prevention, Zhaoyuan 265400, Shandong, China
4. Haiyang Center for Disease Control and Prevention, Haiyang 265110, Shandong, China
5. School of Public Health, Binzhou Medical College, Yantai 264000, Shandong, China; Yantai Center for Disease Control and Prevention, Yantai 264000, Shandong, China
- Publication Type:Journal Article
- Keywords:
Haemaphysalis longicornis;
Severe fever with thrombocytopenia syndrome;
Bandavirus dabieense;
Tick-borne pathogens
- From:
Acta Parasitologica et Medica Entomologica Sinica
2025;32(4):219-224
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate Haemaphysalis longicornis carrying Bandavirus dabieense in Yantai, Shandong Province, and provide references for the prevention and control measures of ticks and tick-borne pathogens. Methods Tick surveillance was carried out in Penglai District, Zhaoyuan City, Haiyang City, and other districts, respectively, in Yantai City from March to October in 2023 and 2024. Parasitic ticks were removed from domestic animals by hand-scratching, and questing ticks were collected using the flag-sweeping method. Real-time RT-PCR was used to detect B. dabieense in the collected Hae. longicornis specimens. SPSS22.0 software was used to perform the χ2test or Fisher's exact test to compare the positive rates among different groups. Results A total of 7 646 Hae. longicornis were captured, including 3 232 questing ticks and 4 414 on-host ticks. Nucleic acid(both DNA and RNA)was extracted from 693 ticks grouped by source, development stage, and region. A total of 20 B. dabieense nucleic acid-positive samples were detected. The overall positive detection rate was 2.89% and the minimum infection rate(MIR)was 0.26%. Among them,17 were from adult parasitic ticks, comprising five from dogs, six from sheep, and six from cattle, and the other three were from questing ticks. There was no significant difference in the positive rates of Hae. longicornis from different hosts or from different developmental stages(P＞0.05). Significant differences were observed in the positive rate of Hae. longicornis from different geographic regions(P＜0.05). Conclusions Hae. longicornalis is the dominant tick species in Yantai City, Shandong Province, with evidence from different host sources in various geographic regions. Ecological monitoring and pathogen detection in ticks should be strengthened to provide a scientific basis for the prevention and control of ticks and tick-borne diseases.
