| rickettsial infection in domestic mammals and their ectoparasites in el valle de antón, coclé, panamá. | the present research evaluated the presence of rickettsia spp. on ectoparasites of horses and dogs (using pcr techniques), and their sera (using immunofluorescence assay) in el valle de antón town in panama. a total of 20 horses and 20 dogs were sampled, finding four species of ectoparasites on dogs (the ticks rhipicephalus sanguineus, amblyomma ovale, amblyomma oblongoguttatum, and the flea ctenocephalides felis), and two tick species on horses (amblyomma cajennense and dermacentor nitens). dna ... | 2010 | 21144663 |
| rickettsia, ehrlichia, anaplasma, and bartonella in ticks and fleas from dogs and cats in bangkok. | abstract flea and tick specimens (5-10 fleas or ticks) on dogs and cats from various sites in bangkok were tested by polymerase chain reaction and dna sequencing to detect dna of bacteria rickettsia (glta and 17 kda genes), anaplasmataceae (16s rrna gene), and bartonella (pap31 and its genes). we confirmed that rickettsia sp. related to rickettsia felis was detected in 66 of 98 (67.4%) flea specimens from dogs, whereas 8 bartonella henselae and 2 bartonella clarridgeiae were detected in 10 of 54 ... | 2011 | 21612535 |
| ectoparasite infestations and canine infection by rickettsiae and ehrlichiae in a semi-arid region of northeastern brazil. | this study investigated the prevalence of rickettsia spp. and ehrlichia canis infection in dogs and their ectoparasites from rural and urban areas of two municipalities, petrolina and juazeiro, within a semiarid region (caatinga biome) of northeastern brazil, by immunofluorescence assay (ifa) and polymerase chain reaction (pcr). overall, 12.1% (61/504) and 23.0% (116/504) of canine plasma samples had antibodies reactive to rickettsia spp. and e. canis. e. canis dna was detected by pcr in 8.3% (4 ... | 0 | 26565771 |
| detection of rickettsia parkeri from within piura, peru, and the first reported presence of candidatus rickettsia andeanae in the tick rhipicephalus sanguineus. | domestic farm animals (n=145) were sampled for the presence of ectoparasites in northwestern peru during march, 2008. ninety domestic animals (62%) were positive for the presence of an ectoparasite(s) and produced a total collection of the following: 728 ticks [amblyomma maculatum, anocentor nitens, rhipicephalus (boophilus) microplus, rhipicephalus sanguineus, and otobius megnini], 12 lice (haematopinus suis), and 3 fleas (ctenocephalides felis). a rickettsia genus-specific qpcr assay was perfo ... | 2013 | 23488453 |
| first report of rickettsia felis in china. | rickettsia felis is a recently described flea-borne spotted fever group rickettsia that is an emerging human pathogen. although there is information on the organism from around the world, there is no information on the organism in china. | 2014 | 25510419 |
| molecular evidence of vector-borne pathogens in dogs and cats and their ectoparasites in algiers, algeria. | in algeria, only limited information is currently available on the prevalence of emergent canine and feline vector-borne diseases. the aim of the present work was to detect by qpcr vector-associated bacteria in stray dogs and cats and their ectoparasites from algiers. 18/117 (15.38%) dogs and 2/107 (1.87%) cats were positive for at least one vector-borne agent. coxiella burnetii and bartonella henselae were identified in 1/117 (0.85%) dog individually. ehrlichia canis dna was detected in 17/117 ... | 2016 | 27012917 |
| detection of rickettsiae in fleas and ticks from areas of costa rica with history of spotted fever group rickettsioses. | outbreaks of spotted fevers have been reported in costa rica since the 1950s, although vectors responsible for transmission to humans have not been directly identified. in this study, species of rickettsia were detected in ectoparasites from costa rica, mostly from five study sites where cases of spotted fevers have been reported. ticks and fleas were collected using drag cloths or directly from domestic and wild animals and pooled according to species, host, and location. pools were analyzed in ... | 2016 | 27592065 |
| rickettsia (rickettsiales: rickettsiaceae) vector biodiversity in high altitude atlantic forest fragments within a semiarid climate: a new endemic area of spotted-fever in brazil. | rickettsioses are re-emerging vector-borne zoonoses with a global distribution. recently, rickettsia sp. strain atlantic rainforest has been associated with new human spotted-fever (sf) cases in brazil, featuring particular clinical signs: eschar formation and lymphadenopathy. these cases have been associated with the tick species, amblyomma ovale from 2010 until 2015, the brazilian health department confirmed 11 human sf cases in the maciço de baturité region, ceará, brazil. the present study r ... | 2016 | 27480099 |
| spotted fever: epidemiology and vector-rickettsia-host relationship in rio de janeiro state. | the eco-epidemiological scenario of spotted fever (sf), a tick-borne disease that affects humans and other animals in several countries around the world, was analyzed in rio de janeiro (rj) state, brazil. during the last 34 years, 990 sf cases were reported in rj (the brazilian state with the highest population density), including 116 cases confirmed by serology (rifi) or pcr, among 42.39% of the municipalities with reported cases of sf. the epidemiologic dynamics of sf in rj state are very hete ... | 2017 | 28424664 |
| detection of rickettsia in rhipicephalus sanguineus ticks and ctenocephalides felis fleas from southeastern tunisia by reverse line blot assay. | ticks (n = 663) and fleas (n = 470) collected from domestic animals from southeastern tunisia were screened for rickettsia infection using reverse line blot assay. evidence of spotted fever group rickettsia was obtained. we detected rickettsia felis in fleas, rickettsia massiliae bar 29 and the rickettsia conorii israeli spotted fever strain in ticks, and rickettsia conorii subsp. conorii and rickettsia spp. in both arthropods. the sensitivity of the adopted technique allowed the identification ... | 2013 | 24226919 |
| rickettsiae in arthropods collected from the north african hedgehog (atelerix algirus) and the desert hedgehog (paraechinus aethiopicus) in algeria. | hedgehogs have become a popular pet despite their potential role in zoonotic disease transmission. we conducted an entomological study in a mountainous region of northeast algeria in which we collected 387 fleas (archeopsylla erinacei) and 342 ticks (rhipicephalus sanguineus and haemaphysalis erinacei) from paraechinus aethiopicus and atelerix algirus hedgehogs. of the hedgehogs sampled, 77.7% and 91% were infested with fleas and ticks, respectively. significantly more ticks and fleas were colle ... | 2012 | 22222114 |
| identification of rickettsia felis in fleas but not ticks on stray cats and dogs and the evidence of rickettsia rhipicephali only in adult stage of rhipicephalus sanguineus and rhipicephalus haemaphysaloides. | rickettsia spp. are zoonotic pathogens and mainly transmitted by various arthropod vectors, such as fleas, ticks, and lice. previous epidemiological studies indicated that ectoparasites infested on dogs or cats may be infected by rickettsia spp., and transmit them to human beings accidentally. in this study, the prevalence of rickettsia infection was evaluated using fleas and ticks from stray dogs and cats in taiwan. a total of 158 pools made by 451 cat fleas (ctenocephalides felis) from 37 dogs ... | 2011 | 22000945 |
| Molecular detection of rickettsial agents in ticks and fleas collected from a European hedgehog (Erinaceus europaeus) in Marseilles, France. | The European hedgehog (Erinaceus europaeus) is a synanthropic nocturnal insectivore commonly found in the countryside and in the parks and gardens. Because hedgehogs are already involved in the transmission of a number of zoonoses, including salmonellosis and ringworm, we decided to study their possible role in the epidemiology of the spotted fever group of Rickettsia. We collected ticks and fleas from a hedgehog that was captured in the city of Marseilles in France. Using a genus-specific quant ... | 2011 | 22169021 |
| molecular detection of rickettsia massiliae, rickettsia sibirica mongolitimonae and rickettsia conorii israelensis in ticks from israel. | rickettsioses are recognized as important emerging vector-borne infections of humans worldwide. previous reports documented the presence of two spotted fever group rickettsiae in israel, rickettsia conorii israelensis and rickettsia felis. the aim of this study was to characterize the diversity of rickettsiae in ticks collected from vegetation and the ground, from different parts of israel. non-engorged questing adult ticks were collected from 13 localities. a total of 131 tick pools, 83 of rhip ... | 2011 | 20331680 |
| characterization of rickettsial diseases in a hospital-based population in central tunisia. | in tunisia, 2 rickettsial groups, spotted fever group and typhus group, have been described since the beginning of the 20th century. mediterranean spotted fever (msf), also known as boutonneuse fever, caused by rickettsia conorii and transmitted by the dog tick rhipicephalus sanguineus, is the most frequent rickettsial infection observed. its seroprevalence in our region is 9% among blood donors and 23% in hospitalized febrile patients. typhus group rickettsioses, caused by r. typhi and r. prowa ... | 2009 | 19538277 |
| rickettsia rickettsii, rickettsia felis and rickettsia sp. twkm03 infecting rhipicephalus sanguineus and ctenocephalides felis collected from dogs in a brazilian spotted fever focus in the state of rio de janeiro/brazil. | | 2009 | 19298400 |
| rickettsia infection in five areas of the state of são paulo, brazil. | this study investigated rickettsial infection in animals, humans, ticks, and fleas collected in five areas of the state of são paulo. eight flea species (adoratopsylla antiquorum antiquorum, ctenocephalides felis felis, polygenis atopus, polygenis rimatus, polygenis roberti roberti, polygenis tripus, rhopalopsyllus lugubris, and rhopalopsyllus lutzi lutzi), and five tick species (amblyomma aureolatum, amblyomma cajennense, amblyomma dubitatum, ixodes loricatus, and rhipicephalus sanguineus) were ... | 2007 | 18094887 |
| identification of ctenocephalides felis fleas as a host of rickettsia felis, the agent of a spotted fever rickettsiosis in yucatań, mexico. | in search for the vector of the recently recognized spotted fever rickettsiosis of the yucatán, ticks, fleas, and lice were collected from vegetation and dogs in localities where seropositive persons had been found. the arthropods were examined by polymerase chain reaction (pcr) using primers for the genus-specific 17-kda protein gene followed by restriction fragment length polymorphism (rflp) and dna sequencing. eleven (20%) of 54 pools of ctenocephalides felis fleas contained dna of rickettsia ... | 2002 | 12653300 |
| rickettsia felis in rhipicephalus sanguineus from two distant chilean cities. | rickettsia felis is an emerging agent considered a human threat; although its natural reservoir and agent of transmission is the cat flea, it has been also found in other vectors. r. felis has been identified in chile in cat fleas and in one specimen of rhipicephalus sanguineus collected in the metropolitan region. the objective of this study was to detect the presence of rickettsia spp. in r. sanguineus from dogs of two different and distant geographical areas in chile. | 2013 | 23659352 |
| rickettsia rickettsii and rickettsia felis infection in rhipicephalus sanguineus ticks and ctenocephalides felis fleas co-existing in a small city in yucatan, mexico. | | 2015 | 26611982 |
| exposure of dogs to spotted fever group rickettsiae in urban sites associated with human rickettsioses in costa rica. | the zoonotic transmission cycles of rickettsia rickettsii and other spotted fever group (sfg) rickettsiae in latin america have usually been associated with rural or sylvatic environments, although domestic dogs can be implicated in more populated settings. in this study, exposure of dogs to sfg rickettsiae in the greater metropolitan area of costa rica was investigated. dogs from sites associated with human cases and from dog shelters were evaluated by indirect immunofluorescence assay (ifa) us ... | 2016 | 26995323 |
| fleas and ticks in carnivores from a domestic-wildlife interface: implications for public health and wildlife. | fleas and ticks are parasites of wild and domestic mammals, and can be vectors of several pathogens. in rural areas, domestic carnivores such as the domestic dog (canis lupus familiaris l.), may act as a "bridge" between natural areas and human settlements where ectoparasites can be used as a metric of such link. the aim of this study was to identify fleas, ticks, and rickettsia spp., collected from domestic and wild carnivores in a natural reserve and surrounding human settlements in central ch ... | 2016 | 27539151 |
| "candidatus rickettsia asemboensis" in rhipicephalus sanguineus ticks, brazil. | "candidatus rickettsia asemboensis" is an obligate intracellular bacterium of the rickettsiales order, genetically related to species belonging to the rickettsia felis group, agents of flea-borne spotted fever. here we report for the first time the detection of "ca. r. asemboensis", a flea-associated organism, in rhipicephalus sanguineus ticks. it is the first occurrence of this emerging bacterium in brazil, which increases the geographical distribution of this r. felis-like agent. | 2017 | 27986544 |