Parasites, Hosts and Diseases

"Xian-Guo Guo"

Original Articles

Disease vector occurrence and ecological characteristics of chiggers on the chestnut white-bellied rat Niviventer fulvescens in Southwest China between 2001 and 2019: Yan-Ling Chen, Xian-Guo Guo, Wen-Yu Song, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Wen-Ge Dong, Xiao-Bin Huang, Dao-Chao Jin; Parasites Hosts Dis 2023;61(3):272-281.
Published online August 21, 2023; DOI: https://doi.org/10.3347/PHD.22044

Chigger mites are the vector of scrub typhus. This study estimates the infestation status and ecological characteristics of chiggers on the chestnut white-bellied rat Niviventer fulvescens in Southwest China between 2001 and 2019. Chiggers were identified under the microscope, and infestation indices were calculated. The Preston’s log-normal model was used to fit the curve of species abundance distribution. A total of 6,557 chiggers were collected in 136 of 342 N. fulvescens rats, showing high overall infestation indices (prevalence=39.8%, mean abundance=19.2, mean intensity=48.2) and high species diversity (S=100, H’=3.0). Leptotrombidium cangjiangense, Neotrombicula japonica, and Ascoschoengastia sifanga were the three dominant chigger species (constituent ratio=42.9%; 2,736/6,384) and exhibited an aggregated distribution among different rat individuals. We identified 100 chigger species, with 3 of them (Leptotrombidium scutellare, Leptotrombidium wenense, and Leptotrombidium deliense) as the main vectors of scrub typhus in China and nine species as potential vectors of this disease. Disease vector occurrence on N. fulvescens may increase the risk of spreading scrub typhus from rats to humans. Chigger infestation on N. fulvescens varied significantly in different environments. The species abundance distribution showed a log-normal distribution pattern. The estimated number of chigger species on N. fulvescens was 126 species.

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A Report of Chigger Mites on the Striped Field Mouse, Apodemus agrarius, in Southwest China: Yan-Ling Chen, Xian-Guo Guo, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ke-Yu Mao, Xiao-Bin Huang, Ti-Jun Qian; Korean J Parasitol 2021;59(6):625-634.
Published online December 22, 2021; DOI: https://doi.org/10.3347/kjp.2021.59.6.625

Abstract
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Based on the field investigations in 91 investigation sites (counties) in southwest China between 2001 and 2019, the present paper reported the chigger mites on A. agrarius mice in southwest China for the first time by using a series of statistical methods. From 715 striped field mice captured in 28 of 91 investigated sites, only 255 chiggers were collected, and they were identified as 14 species, 6 genera in 3 subfamilies under 2 families. Of 715 A. agrarius mice, only 24 of them were infested with chigger mites with low overall prevalence (P_M=3.4%), overall mean abundance (M_A=0.36 mites/host) and overall mean intensity (M_I=10.63 mites/host). The species diversity and infestation of chiggers on A. agrarius were much lower than those previously reported on some other rodents in southwest China. On a certain species of rodent, A. agrarius mouse in southwest China seems to have a very low susceptibility to chigger infestations than in other geographical regions. Of 14 chigger species, there were 3 dominant species, Leptotrombidium sialkotense, L. rupestre and Schoengastiella novoconfuciana, which were of aggregated distribution among different individuals of A. agrarius hosts. L. sialkotense, one of 6 main vectors of scrub typhus in China, was the first dominant on A. agrarius. The species similarity of chigger mites on male and female hosts was low with C_SS=0.25, and this reflects the sex-bias of different genders of A. agrarius mice in harboring different chigger species.

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Infestation, community structure, seasonal fluctuation and climate-driven dynamics of mites on small mammals at a focus of scrub typhus in southwest China
Peng-Wu Yin, Yan Lv, Xian-Guo Guo, Wen-Yu Song, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ya-Fei Zhao, Wen-Ge Dong, Dao-Chao Jin
Frontiers in Veterinary Science.2025;[Epub] CrossRef
The Distribution and Host-Association of the Vector Chigger Species Leptotrombidium imphalum in Southwest China
Qiao-Yi Liu, Rong Fan, Wen-Yu Song, Pei-Ying Peng, Ya-Fei Zhao, Dao-Chao Jin, Xian-Guo Guo
Insects.2024; 15(7): 504. CrossRef
Clinical and epidemiological investigation of human infection with zoonotic parasite Trypanosoma dionisii in China
Nannan Xu, Xiaoai Zhang, Hui Liu, Yintao Xu, Huixia Lu, Lianhui Zhao, Yishan He, Meiqi Zhang, Jingtao Zhang, Guangqian Si, Ziyi Wang, Muxin Chen, Yuchun Cai, Yi Zhang, Qiang Wang, Yuwan Hao, Yuanyuan Li, Zhengbin Zhou, Yunhai Guo, Caiyun Chang, Ming Liu,
Journal of Infection.2024; 89(5): 106290. CrossRef
A Retrospective Report on the Infestation and Distribution of Chiggers on an Endemic Rodent Species (Apodemus latronum) in Southwest China
Qiao-Yi Liu, Xian-Guo Guo, Rong Fan, Wen-Yu Song, Pei-Ying Peng, Ya-Fei Zhao, Dao-Chao Jin
Veterinary Sciences.2024; 11(11): 547. CrossRef
Disease vector occurrence and ecological characteristics of chiggers on the chestnut white-bellied rat Niviventer fulvescens in Southwest China between 2001 and 2019
Yan-Ling Chen, Xian-Guo Guo, Wen-Yu Song, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Wen-Ge Dong, Xiao-Bin Huang, Dao-Chao Jin
Parasites, Hosts and Diseases.2023; 61(3): 272. CrossRef
Infestation of Oriental House Rat (Rattus tanezumi) with Chigger Mites Varies along Environmental Gradients across Five Provincial Regions of Southwest China
Yan-Ling Chen, Xian-Guo Guo, Fan Ding, Yan Lv, Peng-Wu Yin, Wen-Yu Song, Cheng-Fu Zhao, Zhi-Wei Zhang, Rong Fan, Pei-Ying Peng, Bei Li, Ting Chen, Dao-Chao Jin
International Journal of Environmental Research and Public Health.2023; 20(3): 2203. CrossRef
Analysis on infestation and related ecology of chigger mites on large Chinese voles (Eothenomys miletus) in five provincial regions of Southwest China
Bei Li, Xian-Guo Guo, Tian-Guang Ren, Pei-Ying Peng, Wen-Yu Song, Yan Lv, Peng-Wu Yin, Zhe Liu, Xin-Hang Liu, Ti-Jun Qian
International Journal for Parasitology: Parasites and Wildlife.2022; 19: 169. CrossRef
Infestation and distribution of chigger mites on Confucian white-bellied rat (Niviventer confucianus) in Southwest China
Yan-Ling Chen, Xian-Guo Guo, Wen-Yu Song, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Wen-Ge Dong, Xiao-Bin Huang
Biologia.2022; 78(3): 727. CrossRef

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Infestation and Related Ecology of Chigger Mites on the Asian House Rat (Rattus tanezumi) in Yunnan Province, Southwest China: Fan Ding, Wen-Li Jiang, Xian-Guo Guo, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ke-Yu Mao, Rong Xiang; Korean J Parasitol 2021;59(4):377-392.
Published online August 18, 2021; DOI: https://doi.org/10.3347/kjp.2021.59.4.377

Abstract
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This paper is to illustrate the infestation and related ecological characteristics of chigger mites on the Asian house rat (Rattus tanezumi). A total of 17,221 chigger mites were collected from 2,761 R. tanezumi rats, and then identified as 131 species and 19 genera in 2 families. Leptotrombidium deliense, the most powerful vector of scrub typhus in China, was the first major dominant species on R. tanezumi. All the dominant mite species were of an aggregated distribution among different individuals of R. tanezumi. The species composition and infestations of chiggers on R. tanezumi varied along different geographical regions, habitats and altitudes. The species-abundance distribution of the chigger mite community was successfully fitted and the theoretical curve equation was Ŝ (R)=37e^–(0.28R)². The total chigger species on R. tanezumi were estimated to be 199 species or 234 species, and this further suggested that R. tanezumi has a great potential to harbor abundant species of chigger mites. The results of the species-plot relationship indicated that the chigger mite community on R. tanezumi in Yunnan was an uneven community with very high heterogeneity. Wide geographical regions with large host samples are recommended in the investigations of chigger mites.

Citations

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Meteorological factors and normalized difference vegetation index drivers of scrub typhus incidence in Shandong Province based on a 16-year time-frequency analysis
Zhisong Ni, Shufen Li, Rui Xi, Kemeng Liang, Sihao Song, Chuanlong Cheng, Hui Zuo, Liang Lu, Xiujun Li
BMC Public Health.2025;[Epub] CrossRef
Mite Infestation on Rattus tanezum rats in southwest China concerning risk models
Ru-Jin Liu, Xian-Guo Guo, Pei-Ying Peng, Yan Lv, Peng-Wu Yin, Wen-Yu Song, Rong Xiang, Yan-Ling Chen, Bei Li, Dao-Chao Jin
Frontiers in Veterinary Science.2025;[Epub] CrossRef
Abundance and Infestation of Mites on Bower’s White-Toothed Rat (Berylmys bowersi) in Southwest China
Chenxi Liu, Xianguo Guo, Yan Lv, Pengwu Yin, Wenyu Song, Peiying Peng, Rong Xiang, Yanling Chen, Bei Li
Veterinary Sciences.2025; 12(5): 426. CrossRef
The Association Between Environmental Factors and Scrub Typhus: A Review
Shu Yang, Shu Yang, Yuxiang Xie, Wenjing Duan, Yiting Cui, Ai Peng, Yisheng Zhou, Yibing Fan, Hui Li, Peng Huang
Tropical Medicine and Infectious Disease.2025; 10(6): 151. CrossRef
Variation in Small Mammal Species Composition and the Occurrence of Parasitic Mites in Two Landscapes in a Scrub Typhus Endemic Region of Western Yunnan Province, China
Yun‐Yan Luo, Jia‐Xiang Yin, Zong‐Ti Shao, Zeng‐Kan Liu, Shou‐Qin Yin, Jiang‐Li Lu, Jin‐Chun Li, Rong Wei, Alan Frederick Geater
Ecology and Evolution.2025;[Epub] CrossRef
The Distribution and Host-Association of the Vector Chigger Species Leptotrombidium imphalum in Southwest China
Qiao-Yi Liu, Rong Fan, Wen-Yu Song, Pei-Ying Peng, Ya-Fei Zhao, Dao-Chao Jin, Xian-Guo Guo
Insects.2024; 15(7): 504. CrossRef
Estimation of scrub typhus incidence and spatiotemporal multicomponent characteristics from 2016 to 2023 in Zhejiang Province, China
Haocheng Wu, Ming Xue, Chen Wu, Qinbao Lu, Zheyuan Ding, Xinyi Wang, Tianyin Fu, Ke Yang, Junfen Lin
Frontiers in Public Health.2024;[Epub] CrossRef
A Retrospective Report on the Infestation and Distribution of Chiggers on an Endemic Rodent Species (Apodemus latronum) in Southwest China
Qiao-Yi Liu, Xian-Guo Guo, Rong Fan, Wen-Yu Song, Pei-Ying Peng, Ya-Fei Zhao, Dao-Chao Jin
Veterinary Sciences.2024; 11(11): 547. CrossRef
An Ecological Survey of Chiggers (Acariformes: Trombiculidae) Associated with Small Mammals in an Epidemic Focus of Scrub Typhus on the China–Myanmar Border in Southwest China
Ru-Jin Liu, Xian-Guo Guo, Cheng-Fu Zhao, Ya-Fei Zhao, Pei-Ying Peng, Dao-Chao Jin
Insects.2024; 15(10): 812. CrossRef
Infestation of Oriental House Rat (Rattus tanezumi) with Chigger Mites Varies along Environmental Gradients across Five Provincial Regions of Southwest China
Yan-Ling Chen, Xian-Guo Guo, Fan Ding, Yan Lv, Peng-Wu Yin, Wen-Yu Song, Cheng-Fu Zhao, Zhi-Wei Zhang, Rong Fan, Pei-Ying Peng, Bei Li, Ting Chen, Dao-Chao Jin
International Journal of Environmental Research and Public Health.2023; 20(3): 2203. CrossRef
Infestation and distribution of chigger mites on Chevrieri's field mouse (Apodemus chevrieri) in Southwest China
Yan-Ling Chen, Xian-Guo Guo, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ke-Yu Mao, Xiao-Bin Huang, Ti-Jun Qian
International Journal for Parasitology: Parasites and Wildlife.2022; 17: 74. CrossRef
Infestation of chigger mites on Chinese mole shrew,Anourosorex squamipes, in Southwest China and ecological analysis
Bei Li, Xian-Guo Guo, Cheng-Fu Zhao, Zhi-Wei Zhang, Rong Fan, Pei-Ying Peng, Wen-Yu Song, Tian-Guang Ren, Lei Zhang, Ti-Jun Qian
Parasite.2022; 29: 39. CrossRef
Analysis on infestation and related ecology of chigger mites on large Chinese voles (Eothenomys miletus) in five provincial regions of Southwest China
Bei Li, Xian-Guo Guo, Tian-Guang Ren, Pei-Ying Peng, Wen-Yu Song, Yan Lv, Peng-Wu Yin, Zhe Liu, Xin-Hang Liu, Ti-Jun Qian
International Journal for Parasitology: Parasites and Wildlife.2022; 19: 169. CrossRef
Preliminary Study on Species Diversity and Community Characteristics of Gamasid Mites on Small Mammals in Three Parallel Rivers Area of China
Juan-Xiu Zhou, Xian-Guo Guo, Wen-Yu Song, Cheng-Fu Zhao, Zhi-Wei Zhang, Rong Fan, Ting Chen, Yan Lv, Peng-Wu Yin, Dao-Chao Jin
Animals.2022; 12(22): 3217. CrossRef

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Mini Review

Research Advances of Leptotrombidium scutellare in China: Rong Xiang, Xian-Guo Guo; Korean J Parasitol 2021;59(1):1-8.
Published online February 19, 2021; DOI: https://doi.org/10.3347/kjp.2021.59.1.1

Leptotrombidium scutellare is one of the 6 main vectors of scrub typhus in China. It has been found in more than 15 provinces of China. Especially in Yunnan, it was found to be mainly distributed in some mountainous areas with high altitude, low temperature and low precipitation. Rodents and some other small mammals were the most common hosts of L. scutellare. To date, more than 40 host species of L. scutellare have been recorded with very low host specificity, and the main hosts varied in different geographical regions. L. scutellare had a strong resistance against the cold environment, and the temperature and humidity were 2 important factors affecting its growth and development. Among different individuals of their rodent hosts, L. scutellare mites often showed an aggregated distribution pattern, which reflected the interspecific cooperation of the mites. The chromosome karyotype of L. scutellare was 2n=16 and all the 8 pairs of chromosomes were short rod-shaped with metacentric or sub-metacentric types. The isozyme spectrum supported that L. scutellare, L. deliense and L. rubellum were in the same species group. Based on the natural infection, experimental transmission and epidemiological evidence, L. scutellare has been eventually confirmed as the second major vector of scrub typhus in China, which is second only to L. deliense.

Citations

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Distribution and Host Selection of the Chigger Mite Leptotrombidium rupestre, a Potential Vector of Scrub Typhus, in Southwest China
Rong Yu, Xian‐Guo Guo, Yan Lv, Peng‐Wu Yin, Wen‐Yu Song, Pei‐Ying Peng, Ti‐Jun Qian, Rong Xiang, Yan‐Ling Chen, Bei Li
Veterinary Medicine and Science.2025;[Epub] CrossRef
Distribution and infestation of Leptotrombidium scutellare (a major vector of scrub typhus) on small mammals across five provincial regions of Southwest China
Yan Lv, Xian-Guo Guo, Peng-Wu Yin, Xiao-Bin Huang, Ti-Jun Qian
Veterinary Research Communications.2025;[Epub] CrossRef
Seasonal dynamics and niches of three vector chigger species at a focus of scrub typhus in southwest China
Yan Lv, Peng-Wu Yin, Xian-Guo Guo, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ya-Fei Zhao, Lei Zhang
Frontiers in Veterinary Science.2025;[Epub] CrossRef
Infestation, community structure, seasonal fluctuation and climate-driven dynamics of mites on small mammals at a focus of scrub typhus in southwest China
Peng-Wu Yin, Yan Lv, Xian-Guo Guo, Wen-Yu Song, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ya-Fei Zhao, Wen-Ge Dong, Dao-Chao Jin
Frontiers in Veterinary Science.2025;[Epub] CrossRef
Spatiotemporal heterogeneity and long-term impact of meteorological, environmental, and socio-economic factors on scrub typhus in China from 2006 to 2018
Jiaojiao Qian, Yifan Wu, Changqiang Zhu, Qiong Chen, Hongliang Chu, Licheng Liu, Chongcai Wang, Yizhe Luo, Na Yue, Wenhao Li, Xiaohong Yang, Jing Yi, Fuqiang Ye, Ji He, Yong Qi, Fei Lu, Chunhui Wang, Weilong Tan
BMC Public Health.2024;[Epub] CrossRef
Masqueraders Around Disaster: Clinical Features of Scrub Typhus in Fukushima, Japan
Masashi Narita, Naota Monma, Kazuki Chiba, Rie Suzuki, Shohei Fujita, Chisho Hoshino, Kiwamu Nakamura, Yoshiyuki Sekikawa, Hiroshi Ikeda, Minoru Inoue, Takuro Shimbo, Seigo Yamamoto, Shuji Ando, Nobuhiro Takada, Hiromi Fujita
Open Forum Infectious Diseases.2024;[Epub] CrossRef
The Distribution and Host-Association of the Vector Chigger Species Leptotrombidium imphalum in Southwest China
Qiao-Yi Liu, Rong Fan, Wen-Yu Song, Pei-Ying Peng, Ya-Fei Zhao, Dao-Chao Jin, Xian-Guo Guo
Insects.2024; 15(7): 504. CrossRef
A systematic review of environmental covariates and methods for spatial or temporal scrub typhus distribution prediction
Qian Wang, Tian Ma, Fang-Yu Ding, Ahyoung Lim, Saho Takaya, Kartika Saraswati, Meng-Meng Hao, Dong Jiang, Li-Qun Fang, Benn Sartorius, Nicholas P.J. Day, Richard J. Maude
Environmental Research.2024; 263: 120067. CrossRef
Potential distribution of Leptotrombidium scutellare in Yunnan and Sichuan Provinces, China, and its association with mite-borne disease transmission
Wen-Yu Song, Yan Lv, Peng-Wu Yin, Yi-Yu Yang, Xian-Guo Guo
Parasites & Vectors.2023;[Epub] CrossRef
Disease vector occurrence and ecological characteristics of chiggers on the chestnut white-bellied rat Niviventer fulvescens in Southwest China between 2001 and 2019
Yan-Ling Chen, Xian-Guo Guo, Wen-Yu Song, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Wen-Ge Dong, Xiao-Bin Huang, Dao-Chao Jin
Parasites, Hosts and Diseases.2023; 61(3): 272. CrossRef
Infestation and distribution of mites on the Yunnan red-backed vole (Eothenomys miletus) in Yunnan Province of southwest China between 2001 and 2015
Rong Xiang, Xian-Guo Guo, Tian-Guang Ren, Cheng-Fu Zhao, Rong Fan, Zhi-Wei Zhang, Ke-Yu Mao, Pei-Ying Peng, Xiao-Bin Huang, Ti-Jun Qian
Biologia.2022; 77(1): 61. CrossRef
Infestation and distribution of chigger mites on Chevrieri's field mouse (Apodemus chevrieri) in Southwest China
Yan-Ling Chen, Xian-Guo Guo, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ke-Yu Mao, Xiao-Bin Huang, Ti-Jun Qian
International Journal for Parasitology: Parasites and Wildlife.2022; 17: 74. CrossRef
The current and future risk of spread of Leptotrombidium deliense and Leptotrombidium scutellare in mainland China
Tian Ma, Mengmeng Hao, Shuai Chen, Fangyu Ding
Science of The Total Environment.2022; 843: 156986. CrossRef
Infestation of chigger mites on Chinese mole shrew,Anourosorex squamipes, in Southwest China and ecological analysis
Bei Li, Xian-Guo Guo, Cheng-Fu Zhao, Zhi-Wei Zhang, Rong Fan, Pei-Ying Peng, Wen-Yu Song, Tian-Guang Ren, Lei Zhang, Ti-Jun Qian
Parasite.2022; 29: 39. CrossRef
SFTSV infection in rodents and their ectoparasitic chiggers
Xiao-Lan Gu, Wen-Qing Su, Chuan-Min Zhou, Li-Zhu Fang, Ke Zhu, Dong-Qiang Ma, Fa-Chun Jiang, Ze-Min Li, Dan Li, Shu-Hui Duan, Qiu-Ming Peng, Rui Wang, Yuan Jiang, Hui-Ju Han, Xue-Jie Yu, Masayuki Saijo
PLOS Neglected Tropical Diseases.2022; 16(8): e0010698. CrossRef
Analysis on infestation and related ecology of chigger mites on large Chinese voles (Eothenomys miletus) in five provincial regions of Southwest China
Bei Li, Xian-Guo Guo, Tian-Guang Ren, Pei-Ying Peng, Wen-Yu Song, Yan Lv, Peng-Wu Yin, Zhe Liu, Xin-Hang Liu, Ti-Jun Qian
International Journal for Parasitology: Parasites and Wildlife.2022; 19: 169. CrossRef
Not Only Leptotrombidium spp. an Annotated Checklist of Chigger Mites (Actinotrichida: Trombiculidae) Associated with Bacterial Pathogens
Hanna Moniuszko, Konrad Wojnarowski, Paulina Cholewińska
Pathogens.2022; 11(10): 1084. CrossRef
A dataset of distribution and diversity of blood-sucking mites in China
Fan-Fei Meng, Qiang Xu, Jin-Jin Chen, Yang Ji, Wen-Hui Zhang, Zheng-Wei Fan, Guo-Ping Zhao, Bao-Gui Jiang, Tao-Xing Shi, Li-Qun Fang, Wei Liu
Scientific Data.2021;[Epub] CrossRef

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Original Article

Relative Abundance of a Vector of Scrub Typhus, Leptotrombidium sialkotense, in Southern Yunnan Province, China: Yan Lv, Xian-Guo Guo, Dao-Chao Jin, Wen-Yu Song, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ke-Yu Mao, Yun-Ji Zou, Zhi-Hua Yang; Korean J Parasitol 2020;58(2):153-159.
Published online April 30, 2020; DOI: https://doi.org/10.3347/kjp.2020.58.2.153

The chigger mite Leptotrombidium sialkotense is one of the 6 main vectors of scrub typhus in China. Before present study, L. sialkotense was found in some parts of Hunan province, China with a narrow geographical distribution. During field investigation 2016-2017, we found L. sialkotense in Jingha, southern Yunnan, China. Of 15 small mammal host species, L. sialkotense were collected from 6 species of the hosts. Rattus brunneusculus was a dominant host of L. sialkotense, from which 98.3% of the mites were collected. The chigger mite showed a relatively high infestation prevalence (P_M=11.7%) and mean abundance (MA=0.5) in comparison with the rest 5 host species. These results reveal a certain host specificity of L. sialkotense to a rat R. brunneusculus. The mite L. sialkotense showed an aggregated distribution on the host (P<0.05). A positive correlation observed between L. sialkotense and the body length of hosts. There was a positive interspecific association between L. sialkotense and 2 other dominant vectors, L. deliense and L. scutellare.

Citations

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Abundance and Infestation of Mites on Bower’s White-Toothed Rat (Berylmys bowersi) in Southwest China
Chenxi Liu, Xianguo Guo, Yan Lv, Pengwu Yin, Wenyu Song, Peiying Peng, Rong Xiang, Yanling Chen, Bei Li
Veterinary Sciences.2025; 12(5): 426. CrossRef
Molecular Epidemiology and Genetic Diversity of Orientia tsutsugamushi From Patients and Small Mammals in Xiangyun County, Yunnan Province, China
Li Chen, Yi‐Chen Kong, Jia‐Wei Tian, Pei‐Yu Han, Song Wu, Chen‐Jie He, Ti‐Lian Ren, Bo Wang, Lian Qin, Yun‐Zhi Zhang
Veterinary Medicine and Science.2025;[Epub] CrossRef
Seasonal dynamics and niches of three vector chigger species at a focus of scrub typhus in southwest China
Yan Lv, Peng-Wu Yin, Xian-Guo Guo, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ya-Fei Zhao, Lei Zhang
Frontiers in Veterinary Science.2025;[Epub] CrossRef
Infestation, community structure, seasonal fluctuation and climate-driven dynamics of mites on small mammals at a focus of scrub typhus in southwest China
Peng-Wu Yin, Yan Lv, Xian-Guo Guo, Wen-Yu Song, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ya-Fei Zhao, Wen-Ge Dong, Dao-Chao Jin
Frontiers in Veterinary Science.2025;[Epub] CrossRef
The impact of meteorological parameters on the scrub typhus incidence in Baoshan City, western Yunnan, China
Yun-Yan Luo, Alan Frederick Geater, Jia-Xiang Yin
Frontiers in Public Health.2024;[Epub] CrossRef
Potential distribution of Leptotrombidium scutellare in Yunnan and Sichuan Provinces, China, and its association with mite-borne disease transmission
Wen-Yu Song, Yan Lv, Peng-Wu Yin, Yi-Yu Yang, Xian-Guo Guo
Parasites & Vectors.2023;[Epub] CrossRef
Disease vector occurrence and ecological characteristics of chiggers on the chestnut white-bellied rat Niviventer fulvescens in Southwest China between 2001 and 2019
Yan-Ling Chen, Xian-Guo Guo, Wen-Yu Song, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Wen-Ge Dong, Xiao-Bin Huang, Dao-Chao Jin
Parasites, Hosts and Diseases.2023; 61(3): 272. CrossRef
Climate drives the spatiotemporal dynamics of scrub typhus in China
Fangyu Ding, Qian Wang, Mengmeng Hao, Richard James Maude, Nicholas Philip John Day, Shengjie Lai, Shuai Chen, Liqun Fang, Tian Ma, Canjun Zheng, Dong Jiang
Global Change Biology.2022; 28(22): 6618. CrossRef
Infestation and distribution of chigger mites on Confucian white-bellied rat (Niviventer confucianus) in Southwest China
Yan-Ling Chen, Xian-Guo Guo, Wen-Yu Song, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Wen-Ge Dong, Xiao-Bin Huang
Biologia.2022; 78(3): 727. CrossRef
A dataset of distribution and diversity of blood-sucking mites in China
Fan-Fei Meng, Qiang Xu, Jin-Jin Chen, Yang Ji, Wen-Hui Zhang, Zheng-Wei Fan, Guo-Ping Zhao, Bao-Gui Jiang, Tao-Xing Shi, Li-Qun Fang, Wei Liu
Scientific Data.2021;[Epub] CrossRef
Infestation and Related Ecology of Chigger Mites on the Asian House Rat (Rattus tanezumi) in Yunnan Province, Southwest China
Fan Ding, Wen-Li Jiang, Xian-Guo Guo, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ke-Yu Mao, Rong Xiang
The Korean Journal of Parasitology.2021; 59(4): 377. CrossRef
A Report of Chigger Mites on the Striped Field Mouse, Apodemus agrarius, in Southwest China
Yan-Ling Chen, Xian-Guo Guo, Tian-Guang Ren, Lei Zhang, Rong Fan, Cheng-Fu Zhao, Zhi-Wei Zhang, Ke-Yu Mao, Xiao-Bin Huang, Ti-Jun Qian
The Korean Journal of Parasitology.2021; 59(6): 625. CrossRef

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Mini Review

Research Progress on Leptotrombidium deliense: Yan Lv, Xian-Guo Guo, Dao-Chao Jin; Korean J Parasitol 2018;56(4):313-324.
Published online August 31, 2018; DOI: https://doi.org/10.3347/kjp.2018.56.4.313

Abstract
PDF

This article reviews Leptotrombidium deliense, including its discovery and nomenclature, morphological features and identification, life cycle, ecology, relationship with diseases, chromosomes and artificial cultivation. The first record of L. deliense was early in 1922 by Walch. Under the genus Leptotrombidium, there are many sibling species similar to L. deliense, which makes it difficult to differentiate L. deliense from another sibling chigger mites, for example, L. rubellum. The life cycle of the mite (L. deliense) includes 7 stages: egg, deutovum (or prelarva), larva, nymphochrysalis, nymph, imagochrysalis and adult. The mite has a wide geographical distribution with low host specificity, and it often appears in different regions and habitats and on many species of hosts. As a vector species of chigger mite, L. deliense is of great importance in transmitting scrub typhus (tsutsugamushi disease) in many parts of the world, especially in tropical regions of Southeast Asia. The seasonal fluctuation of the mite population varies in different geographical regions. The mite has been successfully cultured in the laboratory, facilitating research on its chromosomes, biochemistry and molecular biology.

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Original Article

A New Species of Chigger Mite (Acari: Trombiculidae) from Rodents in Southwest China: Tian-Guang Ren, Xian-Guo Guo, Dao-Chao Jin, Dian Wu, Quinn E. Fletcher; Korean J Parasitol 2014;52(1):63-67.
Published online February 19, 2014; DOI: https://doi.org/10.3347/kjp.2014.52.1.63

Abstract
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This paper describes a new species of chigger mite (Acari: Trombiculidae), Gahrliepia cangshanensis n. sp., from rodents in southwest China. The specimens were collected from Yunnan red-backed voles, Eothenomys miletus (Thomas, 1914), and a Chinese white-bellied rat, Niviventer confucianus (Milne-Edwards, 1871) in Yunnan Province. The new species is unique mainly in its number of dorsal setae (n=21), and it has the following features: fT (formula of palpotarsus)=4B (B=branched), fp (formula of palpal seta)=B/N/N/N/B (N=naked), a broad tongue-shaped scutum with an almost straight posterior margin, and 17 PPLs (posterior posterolateral seta) with a length of 36-43 ?m. This chigger mite may also infect other rodent hosts and may be distributed in other localities.

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