| complete genome sequence of ehrlichia mineirensis, a novel organism closely related to ehrlichia canis with a new host association. | we report here the complete genome sequencing of ehrlichia mineirensis, an ehrlichia organism that was isolated from the hemolymph of rhipicephalus microplus-engorged females. e. mineirensis is the best characterized ehrlichia isolate from a novel cattle-related clade closely related to the monocytotropic pathogen e. canis. | 2015 | 25614563 |
| a novel ehrlichial agent detected in tick in french polynesia. | ticks are hematophageous arthropods that are known to host and transmit miscellaneous pathogens including zoonotic bacteria. the aim of this study was to investigate the presence of tick-associated microorganisms in tahiti, french polynesia with molecular tools. a total of 658 ticks from two species including rhipicephalus sanguineus s.l. and rh. annulatus were collected with forceps on dogs and cattle respectively, or with a flag on pasture in several locations of tahiti in 2013. two rickettsia ... | 2016 | 27522945 |
| minimum infection rate of ehrlichia minasensis in rhipicephalus microplus and amblyomma sculptum ticks in brazil. | a new genotype phylogenetically close to ehrlichia canis named as ehrlichia minasensis was identified infecting cattle and deer in canada, as well as rhipicephalus microplus ticks and cattle in brazil. although it was detected in r. microplus, little is known about the epidemiology of this ehrlichiosis, especially in other tick species. this study evaluated the minimum infection rate of e. minasensis in amblyomma sculptum and r. microplus ticks from locations where naturally infected cattle were ... | 2016 | 27084673 |
| ultrastructure of ehrlichia mineirensis, a new member of the ehrlichia genus. | recently, we reported the in vitro isolation and the molecular characterization of a new species of ehrlichia (ehrlichia mineirensis) from haemolymph of brazilian rhipicephalus (boophilus) microplus ticks. this organism shows an ortholog of ehrlichia canis major immunogenic protein gp36 with a new structure of tandem repeats. in the present study, we used electron microscopy (high pressure freezing and freeze substitution preparative techniques) to characterize morphologically this new agent gro ... | 2013 | 23998429 |
| ehrlichia minasensis sp. nov., a new species within the genus ehrlichia isolated from the tick rhipicephalus microplus. | recently, we obtained a rickettsial isolate (ehrlichia sp. ufmg-ev) from the hemolymph of rhipicephalus microplus engorged tick females. on the basis of maximum likelihood phylogenetic analysis using 16s rrna, groel, dsb, glta and trp36 nucleotide sequences we showed that ehrlichia sp. ufmg-ev belongs to the α-proteobacteria, family anaplasmataceae, genus ehrlichia. ehrlichia sp. ufmg-ev is a sister taxa of e. canis with 16s rrna, groel, dsb, glta and trp36 nucleotide sequence similarity of 98.3 ... | 2016 | 26763978 |
| ehrlichia and anaplasma infections: serological evidence and tick surveillance in peninsular malaysia. | little information is available on human anaplasmosis and ehrlichiosis in southeast asia despite increasing reports of the detection of anaplasma spp. and ehrlichia spp. in the ticks. we report herein the serological findings against the tick-borne pathogens in a group of animal farm workers (n = 87) and indigenous people (n = 102) in peninsular malaysia. igg antibodies against ehrlichia chaffeensis were detected from 29.9% and 34.3% of farm workers and indigenous people, respectively, using com ... | 2017 | 29202206 |
| molecular detection of tick-borne pathogens in cattle from southwestern ethiopia. | tick-borne diseases (tbds) cause significant losses among livestock and impact the livelihoods of resource-poor farming communities worldwide. in ethiopia, detailed studies on the epidemiology of tick-borne pathogens (tbps) in cattle using sensitive molecular detection methods are scarce. the objective of this study was to determine the prevalence and species composition of bovine tbps of veterinary significance in local cattle populations. a comprehensive cross-sectional epidemiological study w ... | 2017 | 29155863 |