ArticleScientific reports2020
Novel Rickettsia genotypes in ticks in French Guiana, South America.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- [Tick-borne disease in a backpacker in French Guiana: one case of presumed anaplasmosis].Medecine tropicale et sante internationale · 2026Article
- Diversity and spread of cytoplasmic incompatibility genes among maternally inherited symbionts.PLoS genetics · 2025Article
- First record of Ixodes luciae (Acari: Ixodidae) parasitizing Marmosops noctivagus (Didelphimorphia: Didelphidae) in South America.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2025Article
- Reassessment of the genetic basis of natural rifampin resistance in the genus Rickettsia.MicrobiologyOpen · 2024Article
- Detection of Anaplasma and Ehrlichia bacteria in humans, wildlife, and ticks in the Amazon rainforest.Nature communications · 2024Article
- Etiology of Acute Febrile Illnesses in Adults in the Defense Community in French Guiana.The American journal of tropical medicine and hygiene · 2024Article
- Tick-borne Apicomplexa in wildlife and ticks of French Guiana.Parasite (Paris, France) · 2024Article
- Association of SFGPathogens (Basel, Switzerland) · 2023Article
- Review
- Survey of ticks and tick-borne pathogens in wild chimpanzee habitat in Western Uganda.Parasites & vectors · 2023Article
- Molecular detection of Cercopithifilaria, Cruorifilaria and Dipetalonema-like filarial nematodes in ticks of French Guiana.Parasite (Paris, France) · 2023Article
- Novel Chronic Anaplasmosis in Splenectomized Patient, Amazon Rainforest.Emerging infectious diseases · 2022Article
- Ticks and tick-borne Rickettsia in El Salvador.Experimental & applied acarology · 2021Article
- Habitat fragmentation differentially shapes neutral and immune gene variation in a tropical bird species.Heredity · 2021Article
- Widespread Torix Rickettsia in New Zealand amphipods and the use of blocking primers to rescue host COI sequences.Scientific reports · 2020Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Rickettsia are obligate intracellular bacteria often associated with ticks and best known for causing human diseases (rickettsiosis), including typhus fever and sporadic cases of serious infection. In this study, we conducted a large survey of ticks in French Guiana to understand the overall diversity of Rickettsia in this remote area largely covered by dense rainforests. Out of 819 individuals (22 tick species in six genera), 252 (30.8%) samples were positive for Rickettsia infection. Multilocus typing and phylogenetic analysis identified 19 Rickettsia genotypes, but none was 100% identical to already known Rickettsia species or strains. Among these 19 genotypes, we identified two validated Rickettsia species, Rickettsia amblyommatis (spotted fever group) and Rickettsia bellii (bellii group), and characterized a novel and divergent Rickettsia phylogenetic group, the guiana group. While some tick hosts of these Rickettsia genotypes are among the most common ticks to bite humans in French Guiana, their potential pathogenicity remains entirely unknown. However, we found a strong association between Rickettsia genotypes and their host tick species, suggesting that most of these Rickettsia genotypes may be nonpathogenic forms maintained through transovarial transmission.
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