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Molecular genetic analysis and clinical characterization of Rickettsia species isolated from the Republic of Korea in 2017
Author(s) -
Kim YeonSook,
Kim Jeoungyeon,
Choi YeonJoo,
Park HyeJin,
Jang WonJong
Publication year - 2020
Publication title -
transboundary and emerging diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.392
H-Index - 63
eISSN - 1865-1682
pISSN - 1865-1674
DOI - 10.1111/tbed.13525
Subject(s) - biology , rickettsia , haemaphysalis longicornis , 16s ribosomal rna , candidatus , gene sequence , sequence analysis , rickettsiales , microbiology and biotechnology , rickettsiaceae , gene , tick , zoology , virology , ixodidae , genetics , virus
Rickettsia sp. CNH17‐7 was isolated from patients' blood and identified by gene analysis as a species distinct from Rickettsia japonica . In addition, similar rickettsial infection was confirmed in two species ( Haemaphysalis longicornis and Ixodes nipponensis ) of ticks and rodents in northeastern and southwestern provinces, Republic of Korea. Subsequently, the analysis of 16S rRNA, ompA , ompB and sca4 genes of isolate CNH17‐7 revealed 100%, 99.68%, 99.57% and 99.44% sequence similarity with Rickettsia sp. HlR/D91 and Candidatus R. longicornii ROK‐HL727. In this study, we report the isolation of a new Rickettsia sp. CNH17‐7 and infection of different types of ticks with the same rickettsial agents.