Relative Abundance of a Vector of Scrub Typhus, Leptotrombidium sialkotense, in Southern Yunnan Province, China
10.3347/kjp.2020.58.2.153
- Author:
Yan LV
1
;
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
Author Information
1. Institute of Entomology, Guizhou University, and the Provincial Key Laboratory for Agricultural Pest Management in Mountainous Region, Guiyang 550025, China
- Publication Type:Original Article
- From:The Korean Journal of Parasitology
2020;58(2):153-159
- CountryRepublic of Korea
-
Abstract:
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 (PM=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.
