Rickettsia raoultii and Rickettsia sibirica in ticks from the long-tailed ground squirrel near the China-Kazakhstan border

Experimental & Applied Acarology
Shuo ZhaoYuan-Zhi Wang

Abstract

Spotted fever group (SFG) rickettsiae cause infection in humans, domestic animals and wildlife. To date, no rickettsial agents have been reported in hard ticks from the long-tailed ground squirrel (Spermophilus undulatus). A total of 50 adult ticks and 48 nymphs were collected from S. undulatus in the border region of northwestern China. Tick species (identified according to morphological and molecular characteristics) included Dermacentor nuttalli, Dermacentor silvarum and Ixodes kaiseri. Based on the cytochrome c oxidase subunit I (COI) haplotype analysis, I. kaiseri from S. undulatus belongs to an ancestral. In addition, all tick samples were analyzed for the presence of rickettsiae by PCR amplification and sequencing of six genetic markers. Rickettsia raoultii and Rickettsia sibirica subsp. sibirica were shown to occur in adults and nymphs of D. nuttalli and D. silvarum. Rickettsia sibirica subsp. sibirica was also detected in an I. kaiseri adult. Dermacentor silvarum and I. kaiseri were found for the first time on S. undulatus. Rickettsia raoultii and R. sibirica subsp. sibirica were detected in two Dermacentor and one Ixodes species, respectively, suggesting that these rickettsiae circulate in the region of the China-Kaza...Continue Reading

References

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Feb 2, 2010·Emerging Infectious Diseases·Fernando Torres-PerezBrian Hjelle
Jun 20, 2012·Emerging Infectious Diseases·Ana M PalomarJosé A Oteo
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Jan 25, 2017·Transboundary and Emerging Diseases·S-S ZhaoY-Z Wang
Feb 6, 2017·Parasites & Vectors·Bazartseren BoldbaatarGregory C Gray

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Citations

Sep 13, 2019·BMC Infectious Diseases·Zhihui DongYuanzhi Wang
Dec 12, 2020·Parasite : Journal De La Société Française De Parasitologie·Tamara SzentiványiOlivier Glaizot
Dec 4, 2020·Microorganisms·Mariusz Piotrowski, Anna Rymaszewska

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Datasets Mentioned

BETA
MH279561

Methods Mentioned

BETA
nucleic acid extraction
PCR

Software Mentioned

MEGA
ZipcodeDev

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