ArticleParasites & vectors2016
Novel spotted fever group rickettsiae in Haemaphysalis qinghaiensis ticks from Gansu, Northwest China.
Article in Parasites & vectors, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Article
- Article
- Co-Infection of Potential Tick-Borne Pathogens of the Order Rickettsiales andMicroorganisms · 2023Article
- Molecular Survey of Vector-Borne Pathogens in Ticks, Sheep Keds, and Domestic Animals from Ngawa, Southwest China.Pathogens (Basel, Switzerland) · 2022Article
- High prevalence of spotted fever group rickettsiae in ticks collected from yaks (Frontiers in microbiology · 2022Article
- Molecular detection and genetic diversity of Rickettsia spp. in pet dogs and their infesting ticks in Harbin, northeastern China.BMC veterinary research · 2021Article
- Spotted Fever GroupFrontiers in veterinary science · 2021Article
- Distribution and molecular characterization of rickettsiae in ticks in Harbin area of Northeastern China.PLoS neglected tropical diseases · 2020Article
- Molecular evidence of the spotted fever group Rickettsiae in ticks from Yunnan Province, Southwest China.Experimental & applied acarology · 2020Article
- Review
- Neglected aspects of tick-borne rickettsioses.Parasites & vectors · 2018Review
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRickettsia spp. are obligate intracellular bacteria and well known as transmitted by arthropods. These pathogens have a broad geographic distribution and a high degree of biological and clinical diversity. This study was conducted to determine the prevalence and molecular characterization of Rickettsia spp. in ticks collected from Gansu, where Borrelia burgdorferi sensu lato and Anaplasma phagocytophilum were previously reported in ticks and ruminants.
methodsA total of 1,583 questing Haemaphysalis qinghaiensis ticks were collected and tested for the presence of Rickettsia spp. gltA gene by PCR. Samples positive for gltA were examined by specific primers targeted for the ompA gene of SFG rickettsiae. The infections were further validated by sequencing and positive samples were genetically characterized based on the gltA and ompA genes.
resultsIn total, Rickettsia spp. infection was found in 179 (18.5 %) H. qinghaiensis tick pools by using PCR and primers specific for the gltA gene. Of those, 157 (16.3 %) tick pools were positive for SFG rickettsiae by PCR based on ompA gene. Amplification and molecular analysis of the nucleotide sequences of gltA and ompA genes indicated three potential novel spotted fever group rickettsiae in H. qinghaiensis ticks. These three potential novel spotted fever group rickettsiae were clustered together in a subgroup, which represents a sister taxon to and separates from other known four SFG rickettsiae subgroups.
conclusionsThis study revealed a high infection rate of SFG rickettsiae in H. qinghaiensis ticks in northwest China. Three potential novel spotted fever group rickettsiae classified into a novel SFG rickettsiae subgroup were identified and named "Candidatus Rickettsia gannanii" related strains in recognition of the location where it was first detected.
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