| borrelia chilensis, a new member of the borrelia burgdorferi sensu lato complex that extends the range of this genospecies in the southern hemisphere. | borrelia burgdorferi sensu lato (s.l.), transmitted by ixodes spp. ticks, is the causative agent of lyme disease. although ixodes spp. ticks are distributed in both northern and southern hemispheres, evidence for the presence of b. burgdorferi s.l. in south america apart from uruguay is lacking. we now report the presence of culturable spirochetes with flat-wave morphology and borrelial dna in endemic ixodes stilesi ticks collected in chile from environmental vegetation and long-tailed rice rats ... | 2013 | 24148079 |
| nested coevolutionary networks shape the ecological relationships of ticks, hosts, and the lyme disease bacteria of the borrelia burgdorferi (s.l.) complex. | the bacteria of the borrelia burgdorferi (s.l.) (bbg) complex constitute a group of tick-transmitted pathogens that are linked to many vertebrate and tick species. the ecological relationships between the pathogens, the ticks and the vertebrate carriers have not been analysed. the aim of this study was to quantitatively analyse these interactions by creating a network based on a large dataset of associations. specifically, we examined the relative positions of partners in the network, the phylog ... | 2016 | 27662832 |
| the phylogenetic position of ixodes stilesi neumann, 1911 (acari: ixodidae): morphological and preliminary molecular evidences from 16s rdna sequences. | the female of ixodes stilesi neumann, 1911 (acari ixodidae) is redescribed and the male and nymph are described from specimens collected from pudu puda (molina) (artiodactyla: cervidae) in chile. both sexes of i. stilesi have characteristics of the subgenera ixodes latreille, 1795 and ixodiopsis filippova, 1957. the females of i. stilesi are peculiar in having the combination of the sinuous scutum outline, rounded porose areas with distinct borders separated by the width of one area, slender and ... | 2006 | 16612654 |
| infection with borrelia chilensis in ixodes stilesi ticks collected from pudu puda deer. | lyme borreliosis is a vector-borne zoonosis caused by borrelia burgdorferi sensu lato species complex spirochetes, which are maintained in transmission cycles among vertebrates and ixodes ticks. recently, a new genospecies within this complex, borrelia chilensis, was described in ixodes stilesi collected from the environment and from rodents in chile. this tick also infests the native southern pudu deer (pudu puda). the objectives of this study were to investigate the prevalence, intensity of in ... | 2017 | 28549720 |
| borrelia burgdorferi sensu lato in ixodes cf. neuquenensis and ixodes sigelos ticks from the patagonian region of argentina. | this study was conducted to detect borrelia burgdorferi sensu lato infection in ixodid ticks from the patagonia region in the south of argentina. therefore, ticks were collected on rodents in the provinces of chubut, río negro and santa cruz. these ticks were identified as nymphs of ixodes cf. neuquenensis and ixodes sigelos. the b. burgdorferi s.l. infection was tested by a battery of pcr methods targeting the gene flagellin (fla) and the rrfa-rrlb intergenic spacer region (igs). three pools of ... | 2016 | 27372197 |
| genome sequence of borrelia chilensis va1, a south american member of the lyme borreliosis group. | borrelia chilensis strain va1 is a recently described south american member of the borrelia burgdorferi sensu lato complex from chile. whole-genome sequencing analysis determined its linear chromosome and plasmids lp54 and cp26, confirmed its membership in the lyme borreliosis group, and will open new research avenues regarding its pathogenic potential. | 2015 | 25676758 |