| rickettsia bellii and rickettsia amblyommii in amblyomma ticks from the state of rondônia, western amazon, brazil. | this study evaluates the rickettsial presence in amblyomma ticks from eight areas of the amazon forest in rondônia, brazil. the following tick species (number in parentheses) were examined: amblyomma ovale koch (121), amblyomma cajennense (f.) (41), amblyomma naponense (packard) (36), amblyomma scalpturatum neumann (35), amblyomma oblongoguttatum koch (30), amblyomma incisum neumann (27), amblyomma rotundatum koch (16), amblyomma coelebs neumann (10), and amblyomma humerale koch (6). ticks were ... | 2004 | 15605647 |
| rickettsia amblyommatis infecting ticks and exposure of domestic dogs to rickettsia spp. in an amazon-cerrado transition region of northeastern brazil. | this study was performed in maranhão state, a transition area two brazilian biomes, amazon and cerrado. during 2011-2013, 1,560 domestic dogs were sampled for collection of serum blood samples and ticks in eight counties (3 within the amazon and 5 within the cerrado). a total of 959 ticks were collected on 150 dogs (9.6%). rhipicephalus sanguineus sensu lato (s.l.) was the most abundant tick (68% of all collected specimens), followed by amblyomma cajennense sensu lato (s.l.) (12.9%), amblyomma p ... | 2017 | 28594882 |
| molecular detection of rickettsia bellii in amblyomma rotundatum from imported red-footed tortoise (chelonoides carbonaria). | introduction of exotic ticks and pathogens through international animal trade (farm animals and pets) is a serious threat to public health and local fauna. rapid and correct identification of potential threats is an important step on the way to conduct an efficient control of imported pests. in this report we describe the molecular identification of the neotropic tick amblyomma rotundatum intercepted from red-footed tortoise (chelonoides carbonaria), imported to israel from florida, usa. molecul ... | 2015 | 25865033 |
| rickettsia bellii in amblyomma rotundatum ticks parasitizing rhinella jimi from northeastern brazil. | this study evaluated rickettsial infection in amblyomma rotundatum ticks collected from toads (rhinella jimi) in the brazilian caatinga biome, an unique semiarid region of south america. tick infestations were observed in 57.8% toads (26/45); mean infestation: 1.6 ticks/toad. dna extraction from 42 ticks (6 larvae, 22 nymphs and 11 female adults) was tested by polymerase chain reaction (pcr) targeting rickettsia organisms, which were detected in 100% of the ticks. amplicons' dna sequences were i ... | 2016 | 26344601 |