Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
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| molecular characterization of ehrlichia canis infecting dogs, buenos aires. | canine monocytic ehrlichiosis (cme) is a worldwide potentially fatal tick-borne rickettsial disease of dogs caused by ehrlichia canis and transmitted by rhipicephalus sanguineus sensu lato. cme diagnosis includes indirect (serology) and direct (e.g. blood smears and pcr) methods. pcr is more sensitive and specific than direct microscopic examination and positive pcr results confirm infection, whereas positive serologic test results only confirm exposure. the aim of the present study was to perfo ... | 2016 | 27236582 |
| spotted fever group rickettsiae in ticks of migratory birds in romania. | birds are important hosts and dispersers of parasitic arthropods and vector-borne zoonotic pathogens. particularly migratory species may carry these parasites over long distances in short time periods. migratory hotspots present ideal conditions to get a snapshot of parasite and pathogen diversity of birds migrating between continents. the aim of this study was to investigate the presence and diversity of rickettsia spp. in ticks collected from birds at a migratory hot-spot in the danube delta, ... | 2016 | 27207258 |
| molecular ecological insights into neotropical bird-tick interactions. | in the tropics, ticks parasitize many classes of vertebrate hosts. however, because many tropical tick species are only identifiable in the adult stage, and these adults usually parasitize mammals, most attention on the ecology of tick-host interactions has focused on mammalian hosts. in contrast, immature neotropical ticks are often found on wild birds, yet difficulties in identifying immatures hinder studies of birds' role in tropical tick ecology and tick-borne disease transmission. in panama ... | 2016 | 27203693 |
| rickettsia species in human-parasitizing ticks in greece. | ticks serve as vectors and reservoirs for a variety of bacterial, viral and protozoan pathogens affecting humans and animals. unusual increased tick aggressiveness was observed in 2008-2009 in northeastern greece. the aim of the study was to check ticks removed from persons during 2009 for infection with rickettsia species. | 2016 | 27198214 |
| efficacy of a novel topical combination of fipronil 9.8% and (s)-methoprene 8.8% against ticks and fleas in naturally infested dogs. | the efficacy of a novel topical combination of fipronil 9.8% (w/v) and (s)-methoprene 8.8% (w/v) (fiprofort® plus) was tested against ticks and fleas in naturally infested dogs. a total of fifty dogs were allocated in the study with ticks infestation (n = 35) and fleas infestation (n = 15). on day 0, thirty-five tick and fifteen flea infested dogs received the test formulation, a combination of fipronil 9.8% (w/v) and (s)-methoprene 8.8% (w/v) spot-on solution. ticks and flea counts were taken o ... | 2016 | 27190688 |
| an evidence-based review on medicinal plants used as insecticide and insect repellent in traditional iranian medicine. | insects can be the cause of major ecological problems; they can transmit microbes and parasites that affect humans, and damage food crops, trees, and homes. the total economic cost of insect-related damage and disease is immeasurable. in traditional iranian medicine (tim), several medicinal plants have been identified as insecticides or insect repellents, but many of them are still unknown. therefore, the aim of this study was to review the insecticidal or insect repellent activity of certain me ... | 2016 | 27186389 |
| efficacy and speed of kill of a topically applied formulation of dinotefuran-permethrin-pyriproxyfen against weekly tick infestations with rhipicephalus sanguineus (sensu lato) on dogs. | rhipicephalus sanguineus (sensu lato) is a vector of canine babesiosis, anaplasmosis and ehrlichiosis. in order to reduce the chance of transmission of these diseases, an ectoparasiticide should rapidly repel or kill new infestations with this tick. the primary objective of the present study was to evaluate the treatment and preventive acaricidal efficacy of vectra® 3d (54.45 mg/ml of dinotefuran, 396.88 mg/ml of permethrin and 4.84 mg/ml of pyriproxyfen) against r. sanguineus (s.l.) measured at ... | 2016 | 27183970 |
| molecular detection of anaplasma platys, ehrlichia canis, hepatozoon canis and rickettsia monacensis in dogs from maio island of cape verde archipelago. | tick-borne diseases are emerging worldwide and have an important zoonotic relevance. dogs play an important role in the epidemiology of several zoonotic tick-borne pathogens acting as sentinels and/or reservoirs. this study focused on the molecular identification of tick-borne pathogens in blood samples of 153 autochthonous asymptomatic dogs in maio island, cape verde archipelago. eighty-four (54.9%) dogs were positive for one or more pathogens. fifty-five (35.9%) dogs were infected with hepatoz ... | 2016 | 27177475 |
| identification of leishmania spp. promastigotes in the intestines, ovaries, and salivary glands of rhipicephalus sanguineus actively infesting dogs. | sand flies are recognized as the major vector of canine visceral leishmaniasis. however, in some areas of brazil where sand flies do not occur, this disease is found in humans and dogs. there has been speculation that ticks might play a role in transmission of canine visceral leishmaniasis and the dna of leishmania spp. has been reported in whole ticks. we investigated the presence of leishmania spp. promastigotes in the intestines, ovaries, and salivary glands of rhipicephalus sanguineus ticks ... | 2016 | 27169724 |
| canine vector-borne pathogens in semi-domesticated dogs residing in northern cambodia. | in southeast asia, the canine vector-borne pathogens babesia spp., ehrlichia canis, anaplasma platys, hepatozoon canis, haemotropic mycoplasmas and dirofilaria immitis cause significant morbidity and mortality in dogs. moreover, dogs have also been implicated as natural reservoirs for rickettsia felis, the agent of flea-borne spotted fever, increasingly implicated as a cause of undifferentiated fever in humans in southeast asia. the objective of this study was to determine the prevalence and div ... | 2016 | 27161452 |
| vertical transmission of anaplasma platys and leishmania infantum in dogs during the first half of gestation. | leishmania infantum is a canine zoonotic vector-borne protozoan pathogen transmitted by phlebotomine sand flies, whereas anaplasma platys is a bacterium most likely transmitted by ticks. while vertical transmission of l. infantum from pregnant bitches to their offspring has been documented, thus far no studies have explored the possibility of vertical transmission of a. platys in dogs. this study investigated the occurrence of vertical transmission of l. infantum and a. platys in sheltered dogs ... | 2016 | 27161003 |
| molecular investigation of tick-borne pathogens in dogs from luanda, angola. | no molecular data have been available on tick-borne pathogens that infect dogs from angola. the occurrence of agents from the genera anaplasma, babesia, ehrlichia and hepatozoon was assessed in 103 domestic dogs from luanda, by means of the polymerase chain reaction (pcr) and dna sequence analysis. | 2016 | 27160839 |
| molecular detection of tick-borne bacteria and protozoa in cervids and wild boars from portugal. | wildlife can act as reservoir of different tick-borne pathogens, such as bacteria, parasites and viruses. the aim of the present study was to assess the presence of tick-borne bacteria and protozoa with veterinary and zoonotic importance in cervids and wild boars from the centre and south of portugal. | 2016 | 27160767 |
| detection of vector-borne pathogens in cats and their ectoparasites in southern italy. | vector-borne pathogens are the subject of several investigations due to the zoonotic concern of some of them. however, limited data are available about the simultaneous presence of these pathogens in cats and their ectoparasites. the aim of the present study was to define the species of ectoparasites found on cats as well as to investigate vector-borne pathogens in cats and their ectoparasites in southern italy. | 2016 | 27160725 |
| seroprevalence of vector-borne pathogens and molecular detection of borrelia afzelii in military dogs from portugal. | canine vector-borne diseases (cvbds) are increasingly being reported worldwide and represent a serious threat to both animal and public health. military dogs may constitute a risk group for the agents causing these diseases, as they frequently work outdoors in different areas and are thus exposed to vector arthropods. in order to assess the risk of exposure of this type of dogs, a serological and molecular survey was conducted in military working dogs in portugal. one hundred apparently healthy ... | 2016 | 27160284 |
| first report of cytauxzoon sp. infection in a domestic cat from portugal. | cytauxzoonosis is an emerging and life-threatening tick-borne feline disease caused by haemoprotozoan parasites of the genus cytauxzoon. information regarding epidemiological and clinical presentation of infections by species other than cytauxzoon felis is scant. a case of cytauxzoon sp. infection is described in a 2-year-old mixed breed male domestic cat from portugal, presenting a history of acute lethargy, anorexia and pyrexia. | 2016 | 27160193 |
| a survey of ticks (acari: ixodidae) of companion animals in australia. | ticks are among the most important vectors of pathogens affecting companion animals, and also cause health problems such as tick paralysis, anaemia, dermatitis, and secondary infections. twenty ixodid species have previously been recorded on dogs, cats, and horses in australia, including rhipicephalus sanguineus, ixodes holocyclus and haemaphysalis longicornis, which transmit tick-borne diseases. a survey of hard ticks (acari: ixodidae) was conducted during 2012-2015 to investigate tick species ... | 2016 | 27160149 |
| tick repellents and acaricides of botanical origin: a green roadmap to control tick-borne diseases? | arthropods are dangerous vectors of agents of deadly diseases, which may hit as epidemics or pandemics in the increasing world population of humans and animals. among them, ticks transmit more pathogen species than any other group of blood-feeding arthropods worldwide. thus, the effective and eco-friendly control of tick vectors in a constantly changing environment is a crucial challenge. a number of novel routes have been attempted to prevent and control tick-borne diseases, including the devel ... | 2016 | 27146901 |
| ticks infesting humans in northern misiones, argentina. | this work presents records of ticks infesting humans in northern misiones province, argentina. also, notes on potential transmission of tick-borne pathogens are included. a total of 282 ticks attached to researchers were collected and identified by their morphological characters. eight tick species were found: amblyomma brasiliense, amblyomma coelebs, amblyomma dubitatum, amblyomma incisum, amblyomma ovale, haemaphysalis juxtakochi, rhipicephalus sanguineus and rhipicephalus microplus. some of t ... | 2016 | 27135846 |
| molecular detection and characterization of anaplasma platys in dogs and ticks in cuba. | canine cyclic thrombocytopenia, an infectious disease caused by anaplasma platys is a worldwide dog health problem. this study aimed to detect and characterize a. platys deoxyribonucleic acid (dna) in dogs and ticks from cuba using molecular methods. the study was conducted in four cities of cuba (habana del este, boyeros, cotorro and san josé de las lajas). blood samples were collected from 100 dogs in these cities. the animals were inspected for the detection of tick infestation and specimens ... | 2016 | 27132516 |
| tick-borne pathogens of zoonotic and veterinary importance in nigerian cattle. | ticks and tick-borne diseases undermine cattle fitness and productivity in the whole of sub-saharan africa, including nigeria. in this west african country, cattle are challenged by numerous tick species, especially during the wet season. consequently, several tbds are known to be endemic in nigerian cattle, including anaplasmosis, babesiosis, cowdriosis and theilerioris (by theileria mutans and theileria velifera). to date, all investigations on cattle tbds in nigeria have been based on cytolog ... | 2016 | 27090756 |
| evaluation of the in vitro expression of atp binding-cassette (abc) proteins in an ixodes ricinus cell line exposed to ivermectin. | ticks are among the most important vectors of pathogens causing human and animal disease. acaricides are used to control tick infestation, although there are increasing reports of resistance. recently, over-expression of atp-binding cassette (abc) transporter proteins (p-glycoproteins, pgp) has been implicated in resistance to the acaricide ivermectin in the ticks rhipicephalus (boophilus) microplus and rhipicephalus sanguineus sensu lato. ixodid tick cell lines have been used to investigate dru ... | 2016 | 27090214 |
| rickettsia parkeri rickettsiosis, arizona, usa. | in the united states, all previously reported cases of rickettsia parkeri rickettsiosis have been linked to transmission by the gulf coast tick (amblyomma maculatum). here we describe 1 confirmed and 1 probable case of r. parkeri rickettsiosis acquired in a mountainous region of southern arizona, well beyond the recognized geographic range of a. maculatum ticks. the likely vector for these 2 infections was identified as the amblyomma triste tick, a neotropical species only recently recognized in ... | 0 | 27089251 |
| fatal monocytic ehrlichiosis in woman, mexico, 2013. | human monocytic ehrlichiosis is a febrile illness caused by ehrlichia chaffeensis, an intracellular bacterium transmitted by ticks. in mexico, a case of e. chaffeensis infection in an immunocompetent 31-year-old woman without recognized tick bite was fatal. this diagnosis should be considered for patients with fever, leukopenia, thrombocytopenia, and elevated liver enzyme levels. | 0 | 27088220 |
| genetic and immunological evidences of borrelia burgdorferi in dog in thailand. | lyme disease is a tick-borne zoonotic disease caused by spirochete borrelia burgdorferi. it is transmitted from animals to humans by the bite of infected ticks of the genus ixodes. although lyme disease has been reported in china and japan, the disease has never been reported in thailand. blood samples and ticks were collected from 402 dogs from 7 and 3 animal clinics in chiang mai and phuket provinces, thailand, respectively. blood samples were tested for antibodies against b. burgdorferi, anap ... | 2016 | 27086427 |
| quantification of brown dog tick repellents, 2-hexanone and benzaldehyde, and release from tick-resistant beagles, canis lupus familiaris. | we have recently shown that repellency of the tick rhipicephalus sanguineus sensu lato by the tick resistant dog breed, the beagle, is mediated by volatile organic compounds (vocs) 2-hexanone and benzaldehyde present in beagle odour. ectoparasite location of animal hosts is affected by variation in these odour components and their ratios. the aim of this study was to quantify the release rate, and the ratio, of 2-hexanone and benzaldehyde from beagles. the odour of three beagles was collected, f ... | 2016 | 27085013 |
| design of the ataq peptide and its evaluation as an immunogen to develop a rhipicephalus vaccine. | tick infestation may cause several problems including affecting domestic animal health and reducing the production of meat and milk, among others. resistance to several classes of acaricides have been reported, forcing researchers to search for alternative measures, such as vaccines against ticks, to ensure tick control while having no or at least low negative impacts on the environment and public health. however, the current commercially available vaccines in different strains of rhipicephalus ... | 2016 | 27084468 |
| rhipicephalus sanguineus (acari: ixodidae) biting a human being in portoalegre city, rio grande do sul, brazil. | we report the finding of a female brown dog tick, rhipicephalus sanguineus (acari: ixodidae) on the scalp of a male patient inporto alegre, rio grande do sul, brazil. human parasitism by this tick is rare and has seldomly been reported in the literature, despite its recognized importance since it can act as a vector of rickettsia rickettsii, the agent of spotted fever. | 2016 | 27074329 |
| distribution of spotted fever group rickettsiae in hard ticks (ixodida: ixodidae) from panamanian urban and rural environments (2007-2013). | tick-borne rickettsiosis is an important emerging disease in panama; to date, there have been 12 confirmed cases, including eight fatalities. to evaluate the distribution of rickettsiae in panamanian ticks, we collected questing and on-host ticks in urban and rural towns in elevations varying between 0 and 2300 m. a total of 63 sites (13 urban and 50 rural towns) were used to develop models of spatial distributions. we found the following tick species: rhipicephalus sanguineus s.l. (present in 5 ... | 2016 | 27068930 |
| efficacy of a novel oral formulation of sarolaner (simparica™) against four common tick species infesting dogs in europe. | the efficacy of single oral treatment of sarolaner (simparica™, zoetis), a novel isoxazoline compound, was evaluated against four tick species known to commonly infest dogs in europe. eight laboratory studies were conducted using adult purpose-bred beagle dogs. in each study, 16 animals were randomly allocated to one of two treatment groups based on pre-treatment host-suitability tick counts. dogs were infested with 50 unfed adult dermacentor reticulatus (two studies), ixodes hexagonus (three st ... | 2016 | 27068640 |
| partial characterization of a novel anti-inflammatory protein from salivary gland extract of hyalomma anatolicum anatolicum 77acari: ixodidae) ticks. | hyalomma anatolicum anatolicum ticks transmit theileria annulata, causative agent of tropical theileriosis to cattle and buffaloes causing a major economic loss in terms of production and mortality in tropical countries. ticks have evolved several immune evading strategies to circumvent hosts' rejection and achieve engorgement. successful feeding of ticks relies on a pharmacy of chemicals located in their complex salivary glands and secreted saliva. these chemicals in saliva could inhibit host i ... | 2015 | 27065646 |
| hematobiochemical changes in ehrlichiosis in dogs of anand region, gujarat. | the present research work was undertaken to study the diagnostic importance of hematobiochemical changes in naturally occurring ehrlichiosis in dogs of anand region, gujarat irrespective of their age, breed, and sex. | 2015 | 27065635 |
| retrospective analyses of dogs found serologically positive for ehrlichia canis in cebu, philippines from 2003 to 2014. | the study aimed to document the clinical and hematological observations of dogs found serologically positive for ehrlichia canis and to identify parameters or factors that are associated with the disease with focus on the anemic and thrombocytopenic state of the infected dogs. | 2016 | 27051183 |
| new molecular data shed light on the global phylogeny and species limits of the rhipicephalus sanguineus complex. | the rhipicephalus sanguineus complex is a group of closely related tick species distributed all around the world. in this study, using mitochondrial 16s ribosomal dna, new specimens of r sanguineus sensu lato from turkey and rhipicephalus camicasi from kenya, were evaluated together with available sequences of this complex in genbank. our objectives were to delimit the complex, re-evaluate its global phylogeny and develop a reconstruction of its biogeographic history. given turkey's geographical ... | 2016 | 27050755 |
| tick-borne infections in human and animal population worldwide. | the abundance and activity of ectoparasites and its hosts are affected by various abiotic factors, such as climate and other organisms (predators, pathogens and competitors) presenting thus multiples forms of association (obligate to facultative, permanent to intermittent and superficial to subcutaneous) developed during long co-evolving processes. ticks are ectoparasites widespread globally and its eco epidemiology are closely related to the environmental conditions. they are obligatory hematop ... | 2015 | 27047089 |
| deltamethrin-mediated toxicity and cytomorphological changes in the midgut and nervous system of the mayfly callibaetis radiatus. | immature instars of mayflies are important constituents of the food web in aquatic ecosystems (especially in neotropical regions) and they are among the most susceptible arthropods to pyrethroid insecticides. these insecticides have been recognized as important stressors of freshwater ecosystems, but their cellular effects in aquatic insects have been neglected. here, we assessed the susceptibility to deltamethrin (a typical type ii pyrethroid) as well as the deltamethrin-mediated cytomorphologi ... | 2016 | 27031238 |
| 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 |
| factors associated with anaplasma spp. seroprevalence among dogs in the united states. | dogs in the united states are hosts to a diverse range of ticks and tick-borne pathogens, including a. phagocytophilum, an important emerging canine and human pathogen. previously, a companion animal parasite council (capc)-sponsored workshop proposed factors purported to be associated with the infection risk for tick-transmitted pathogens in dogs in the united states, including climate conditions, socioeconomic characteristics, local topography, and vector distribution. | 2016 | 27004557 |
| phylogeography of rhipicephalus sanguineus sensu lato and its relationships with climatic factors. | brown dog ticks morphologically identifiable as rhipicephalus sanguineus sensu lato, are distributed world-wide and their systematics is controversial. results of genetic and reproductive compatibility studies of geographically distinct populations of r. sanguineus s.l. indicate that the r. sanguineus complex is paraphyletic. to further elucidate systematic relationships within r. sanguineus s.l. and geographic boundaries of its lineages, we conducted a phylogeographical study of 136 tick specim ... | 2016 | 27003273 |
| risk factors for bartonella species infection in blood donors from southeast brazil. | bacteria from the genus bartonella are emerging blood-borne bacteria, capable of causing long-lasting infection in marine and terrestrial mammals, including humans. bartonella are generally well adapted to their main host, causing persistent infection without clinical manifestation. however, these organisms may cause severe disease in natural or accidental hosts. in humans, bartonella species have been detected from sick patients presented with diverse disease manifestations, including cat scrat ... | 2016 | 26999057 |
| 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 |
| molecular detection of anaplasma platys infection in free-roaming dogs and ticks from kenya and ivory coast. | anaplasma platys is a bacterium parasitic in the canine platelets, representing the causative agent of canine cyclic thrombocytopenia, with a worldwide distribution, mainly in tropical countries. the agent has zoonotic potential, being reported in several human clinical cases. the suspected vector is the tick rhipicephalus sanguineus (sensu lato), widely distributed in animals and humans in the tropical regions of south america, africa, asia and australia, but also in southern europe. only few s ... | 2016 | 26984538 |
| genetic diversity and molecular characterization of babesia motasi-like in small ruminants and ixodid ticks from china. | ovine babesioses, an important tick-borne disease of sheep and goats in china, is caused by the reproduction of intraerythrocytic protozoa of the babesia genus. babesia motasi-like is a babesia parasite that infects small ruminant in china, and two sub-groups of b. motasi-like can be subdivided based on differences in the rhoptry-associated-protein-1 gene. this study aimed to characterize the distribution, epidemiology and genetics of b. motasi-like in animals and ticks. a molecular investigatio ... | 2016 | 26976477 |
| molecular identification of borrelia genus in questing hard ticks from portugal: phylogenetic characterization of two novel relapsing fever-like borrelia sp. | in the last decades, several studies have reported pathogenic species of borrelia related to those that cause tick-borne relapsing fever (rf), but unexpectedly suggesting their transmission by hard ticks, known vectors of borrelia burgdorferi sensu lato (b. burgdorferi s.l.) species, rather than by soft ticks. this study was designed to update the presence of b. burgdorferi s.l. species in ticks from several districts of mainland portugal, where ixodes ricinus had been previously described. tick ... | 2016 | 26976475 |
| molecular detection of theileria, babesia, and hepatozoon spp. in ixodid ticks from palestine. | ixodid ticks transmit various infectious agents that cause disease in humans and livestock worldwide. a cross-sectional survey on the presence of protozoan pathogens in ticks was carried out to assess the impact of tick-borne protozoa on domestic animals in palestine. ticks were collected from herds with sheep, goats and dogs in different geographic districts and their species were determined using morphological keys. the presence of piroplasms and hepatozoon spp. was determined by pcr amplifica ... | 2016 | 26969489 |
| novel spotted fever group rickettsiae in haemaphysalis qinghaiensis ticks from gansu, northwest china. | rickettsia spp. are obligate intracellular bacteria and well known as transmitted by arthropods. these pathogens have a broad geographic distribution and a high degree of biological and clinical diversity. this study was conducted to determine the prevalence and molecular characterization of rickettsia spp. in ticks collected from gansu, where borrelia burgdorferi sensu lato and anaplasma phagocytophilum were previously reported in ticks and ruminants. | 2016 | 26968160 |
| discovery of sarolaner: a novel, orally administered, broad-spectrum, isoxazoline ectoparasiticide for dogs. | the novel isoxazoline ectoparasiticide, sarolaner, was identified during a lead optimization program for an orally-active compound with efficacy against fleas and ticks on dogs. the aim of the discovery program was to identify a novel isoxazoline specifically for use in companion animals, beginning with de novo synthesis in the zoetis research laboratories. the sarolaner molecule has unique structural features important for its potency and pharmacokinetic (pk) properties, including spiroazetidin ... | 2016 | 26961590 |
| serological and molecular investigation of ehrlichia spp. and anaplasma spp. in ticks and blood of dogs, in the thrace region of turkey. | in recent years, tick-borne diseases like ehrlichiosis and anaplasmosis became widespread worldwide threatening the health of both human and companion animals. therefore, the aim of this study was to determine the presence of anaplasma spp., and ehrlichia spp. in dogs and ticks in the thrace region of turkey. a total of 400 blood samples and 912 ticks were collected from dogs living in shelters that are located in four cities (istanbul, edirne, tekirdag and kirklareli) of the thrace region. bloo ... | 2016 | 26961274 |
| sero-epidemiological survey of crimean-congo hemorrhagic fever virus in tunisia. | crimean-congo hemorrhagic fever (cchf) is a tick-borne disease associated with a high case fatality rate and transmitted mainly by hyalomma marginatum. the geographical distribution of h. marginatum covers most of the western mediterranean basin. we aimed to investigate whether cchf virus (cchfv) is circulating in tunisia. samples from unexplained acute febrile patients (n = 181) and a high risk group of humans, mainly slaughter workers (n = 38), were collected in the summer of 2014 and analyzed ... | 2016 | 26956221 |
| determination of the effective dose of a novel oral formulation of sarolaner (simparica™) for the treatment and month-long control of fleas and ticks on dogs. | three laboratory studies were conducted to determine the appropriate dose of sarolaner, a novel isoxazoline, for the treatment and month-long control of infestations of fleas and ticks on dogs. in the first study, dogs were treated orally with sarolaner suspension formulations at 1.25, 2.5 or 5.0mg/kg, and infested with dermacentor reticulatus, rhipicephalus sanguineus ticks and with ctenocephalides felis felis (cat flea) prior to treatment and then weekly for up to 8 weeks. fleas and ticks were ... | 2016 | 26948830 |
| antifungal, antiradical and cytotoxic activities of extractives obtained from tagetes patula l. (asteraceae), a potential acaricide plant species. | tagetes patula l. shows a complex chemical composition, ranging from glycosylated flavonoids and thiophenes in extracts until terpenoids in the essential oil. in the present study, due to this rich flavonoidic constitution, its antioxidant potential was determined, having shown values of antiradical percentage superior to reference compounds, mainly the extracts prepared with flowers. previous studies performed emphasized the acaricide potential of t. patula and thus, the present study aimed to ... | 2016 | 26945559 |
| molecular epidemiological surveillance to assess emergence and re-emergence of tick-borne infections in tick samples from china evaluated by nested pcrs. | an investigation was performed to detect eight pathogens in ticks collected from grass tips or animals in the southern, central and northeast regions of china. dna samples extracted from ticks were collected from ten different locations in eight provinces of china and subjected to screening for tick-borne pathogens, including borrelia burgdorferi sensu lato, ehrlichia spp., rickettsia spp., babesia/theileria spp., ehrlichia ruminantium, coxiella burnetii, and francisella tularensis, using nested ... | 2016 | 26943995 |
| hierarchical bayesian spatio-temporal analysis of climatic and socio-economic determinants of rocky mountain spotted fever. | this study aims to examine the spatio-temporal dynamics of rocky mountain spotted fever (rmsf) prevalence in four contiguous states of midwestern united states, and to determine the impact of environmental and socio-economic factors associated with this disease. bayesian hierarchical models were used to quantify space and time only trends and spatio-temporal interaction effect in the case reports submitted to the state health departments in the region. various socio-economic, environmental and c ... | 2016 | 26942604 |
| efficacy of a novel oral formulation of sarolaner (simparica™) against five common tick species infesting dogs in the united states. | the efficacy of a single oral treatment with sarolaner (simparica™, zoetis), a novel isoxazoline compound, was evaluated against five tick species known to infest dogs in the united states. a total of 10 laboratory studies, two against each species, were conducted using adult purpose-bred mongrels or beagle dogs. in each study, 16 dogs were randomly allocated to one of two treatment groups based on pre-treatment host-suitability tick counts. dogs were infested with approximately 50 unfed adult a ... | 2016 | 26935819 |
| novel phleboviruses detected in ticks, greece. | since 2009, when severe fever with thrombocytopenia syndrome virus and heartland virus have been identified and associated with disease in humans, the interest on tick-borne phleboviruses is increasing rapidly. the aim of the present study was to investigate the presence of tick-borne phleboviruses in greece and compare them with respective ones detected worldwide. ticks collected from goats and sheep in 60 sites of 13 regional units of greece were grouped in pools (1-3 ticks per pool) and teste ... | 2016 | 26935112 |
| prediction of g protein-coupled receptor encoding sequences from the synganglion transcriptome of the cattle tick, rhipicephalus microplus. | the cattle tick, rhipicephalus (boophilus) microplus, is a pest which causes multiple health complications in cattle. the g protein-coupled receptor (gpcr) super-family presents a candidate target for developing novel tick control methods. however, gpcrs share limited sequence similarity among orthologous family members, and there is no reference genome available for r. microplus. this limits the effectiveness of alignment-dependent methods such as blast and pfam for identifying gpcrs from r. mi ... | 2016 | 26922323 |
| transcriptome of larvae representing the rhipicephalus sanguineus complex. | rhipicephalus sanguineus sensu lato (ixodida: ixodidae) is possibly the most widespread tick species worldwide, responsible for transmitting several vector-borne pathogens of medical and veterinary importance. here, we explore the transcriptome of r. sanguineus s.l. larvae (putignano strain). we sequenced total rna from r. sanguineus s.l. larvae. a total of 15,566,986 short paired-end reads were de novo-assembled into 33,396 transcripts and then annotated and analyzed. particular attention was p ... | 2017 | 26921517 |
| comparative speed of kill of oral treatments with simparica™ (sarolaner) and bravecto®(fluralaner) against induced infestations of rhipicephalus sanguineus on dogs. | rhipicephalus sanguineus is the most widely distributed tick species infesting dogs worldwide, which may cause discomfort to the host and transmit diseases. acaricides with a rapid and sustained speed of kill are thus important to prevent infestation and to reduce the risk of disease transmission. in this study, the speed of kill of a monthly administered simparica™ (sarolaner) treatment against induced infestations with r. sanguineus on dogs was evaluated and compared with a single dose of brav ... | 2016 | 26911244 |
| arsenophonus nasoniae and rickettsiae infection of ixodes ricinus due to parasitic wasp ixodiphagus hookeri. | arsenophonus nasoniae, a male-killing endosymbiont of chalcid wasps, was recently detected in several hard tick species. following the hypothesis that its presence in ticks may not be linked to the direct occurrence of bacteria in tick's organs, we identified a. nasoniae in wasps emerging from parasitised nymphs. we confirmed that 28.1% of ixodiphagus hookeri wasps parasitizing ixodes ricinus ticks were infected by a. nasoniae. moreover, in examined i. ricinus nymphs, a. nasoniae was detected on ... | 2016 | 26901622 |
| missed retained tick: "look for the legs". | 2015 | 26900234 | |
| comparative speed of kill of sarolaner (simparica) and afoxolaner (nexgard) against induced infestations of amblyomma americanum on dogs. | the lone star tick, amblyomma americanum, infests dogs and cats in north america and is the vector of the pathogens that cause monocytic and granulocytic ehrlichiosis in dogs and humans. a parasiticide's speed of kill is important to minimize the direct and deleterious effects of tick infestation and especially to reduce the risk of transmission of tick-borne pathogens. in this study, speed of kill of a novel orally administered isoxazoline parasiticide, sarolaner (simparica chewable tablets), a ... | 2016 | 26897175 |
| comparative speed of kill of sarolaner (simparica) and afoxolaner (nexgard) against induced infestations of rhipicephalus sanguineus s.l. on dogs. | the brown dog tick, rhipicephalus sanguineus sensu lato, commonly infests dogs globally, is the major vector of the pathogen that causes canine monocytic ehrlichiosis and also transmits babesia vogeli. a rapid speed of kill of a parasiticide is essential to reduce the direct deleterious effects of tick infestation and the risk of tick-borne pathogen transmission. the speed of kill of a novel orally administered isoxazoline parasiticide, sarolaner (simparica), against r. sanguineus sensu lato on ... | 2016 | 26896456 |
| ticks associated with domestic dogs and cats in florida, usa. | voluntary collections of ticks from domestic dogs and cats by veterinary practitioners across florida, usa, were conducted over a 10 month period. of the 1337 ticks submitted, five species of ixodid ticks were identified and included rhipicephalus sanguineus, amblyomma americanum, a. maculatum, dermacentor variabilis, and ixodes scapularis. most ticks were collected from dogs (98.4%) with the most predominant species being r. sanguineus (94.3%). of the ticks collected from cats (1.6%), a. americ ... | 2016 | 26888081 |
| brazilian spotted fever with an approach in veterinary medicine and one health perspective. | there is increasing interaction between man and pathogens transmitted by arthropods, especially by ticks. it is on this background that a holistic approach stands out, for the sake of public health. brazilian spotted fever is an endemic disease at the country's southeast, with amblyomma sculptum as its major contributor, followed by a. aureolatum and potentially rhipicephalus sanguineus. dogs have been considered sentinels, and in some areas the disease in dogs can precede human disease. conside ... | 2016 | 26881183 |
| a brown dog tick (rhipicephalus sanguineus) bite at sea. | medical officers (mos) and medical branch ratings (mbrs) must maintain an awareness of the risk of vector-borne diseases among deployed personnel. personnel working in the maritime environment may not expect to be at risk of tick bites, as ticks typically occupy habitats with dense vegetation such as forests or scrub land. however, tick-borne pathogens can cause serious and sometimes fatal disease, and therefore the risk of tick bites and associated diseases should be recognised. we present a ca ... | 2015 | 26867423 |
| origin and evolution of rickettsial plasmids. | rickettsia species are strictly intracellular bacteria that have undergone a reductive genomic evolution. despite their allopatric lifestyle, almost half of the 26 currently validated rickettsia species have plasmids. in order to study the origin, evolutionary history and putative roles of rickettsial plasmids, we investigated the evolutionary processes that have shaped 20 plasmids belonging to 11 species, using comparative genomics and phylogenetic analysis between rickettsial, microbial and no ... | 2016 | 26866478 |
| genomic insights into the ixodes scapularis tick vector of lyme disease. | ticks transmit more pathogens to humans and animals than any other arthropod. we describe the 2.1 gbp nuclear genome of the tick, ixodes scapularis (say), which vectors pathogens that cause lyme disease, human granulocytic anaplasmosis, babesiosis and other diseases. the large genome reflects accumulation of repetitive dna, new lineages of retro-transposons, and gene architecture patterns resembling ancient metazoans rather than pancrustaceans. annotation of scaffolds representing ∼57% of the ge ... | 2016 | 26856261 |
| morphological alterations in salivary glands of rhipicephalus sanguineus ticks (acari: ixodidae) exposed to neem seed oil with known azadirachtin concentration. | neem (azadirachta indica) has attracted the attention of researchers worldwide due to its repellent properties and recognized effects on the morphology and physiology of arthropods, including ticks. therefore, this study aimed to demonstrate the effects of neem seed oil enriched with azadirachtin on salivary glands of rhipicephalus sanguineus ticks, targets of great veterinary interest because of their ability to transmit pathogens to dogs. for this, r. sanguineus semi-engorged females were subj ... | 2016 | 26852009 |
| the putative role of rhipicephalus microplus salivary serpins in the tick-host relationship. | inflammation and hemostasis are part of the host's first line of defense to tick feeding. these systems are in part serine protease mediated and are tightly controlled by their endogenous inhibitors, in the serpin superfamily (serine protease inhibitors). from this perspective ticks are thought to use serpins to evade host defenses during feeding. the cattle tick rhipicephalus microplus encodes at least 24 serpins, of which rms-3, rms-6, and rms-17 were previously identified in saliva of this ti ... | 2016 | 26844868 |
| growth of ehrlichia canis, the causative agent of canine monocytic ehrlichiosis, in vector and non-vector ixodid tick cell lines. | canine monocytic ehrlichiosis is caused by ehrlichia canis, a small gram-negative coccoid bacterium that infects circulating monocytes. the disease is transmitted by the brown dog tick rhipicephalus sanguineus s.l. and is acknowledged as an important infectious disease of dogs and other members of the family canidae worldwide. e. canis is routinely cultured in vitro in the canine monocyte-macrophage cell line dh82 and in non-vector ixodes scapularis tick cell lines, but not in cells derived from ... | 2016 | 26837859 |
| climate change, biodiversity, ticks and tick-borne diseases: the butterfly effect. | we have killed wild animals for obtaining food and decimated forests for many reasons. nowadays, we are burning fossil fuels as never before and even exploring petroleum in deep waters. the impact of these activities on our planet is now visible to the naked eye and the debate on climate change is warming up in scientific meetings and becoming a priority on the agenda of both scientists and policy decision makers. on the occasion of the impact of environmental changes on infectious diseases (iec ... | 2015 | 26835253 |
| [epidemiological investigation of predominance tick and the infectious status of severe fever thrombocytopenia syndrome virus in penglai and laizhou counties, shandong province]. | to investigate the predominance ticks and the infectious status of severe fever with thrombocytopenia (sftsv) in penglai and laizhou counties, shandong province. | 2015 | 26833011 |
| knock-down and speed of kill of a combination of fipronil and permethrin for the prevention of ctenocephalides felis flea infestation in dogs. | a topical combination of fipronil + permethrin (frontline tri-act/frontect, merial) has recently been developed to control fleas, ticks, mosquitoes, sandflies and stable flies on dogs. two studies were conducted to assess its speed of kill and knock-down effect on ctenocephalides felis fleas. the combination was compared to either fipronil alone or to a combination of permethrin, dinotefuran, and pyriproxyfen, | 2016 | 26830931 |
| candidatus coxiella massiliensis infection. | bacteria genetically related to coxiella burnetii have been found in ticks. using molecular techniques, we detected coxiella-like bacteria, here named candidatus coxiella massiliensis, in skin biopsy samples and ticks removed from patients with an eschar. this organism may be a common agent of scalp eschar and neck lymphadenopathy after tick bite. | 2016 | 26811945 |
| frequency and distribution of rickettsiae, borreliae, and ehrlichiae detected in human-parasitizing ticks, texas, usa. | to describe the presence and distribution of tickborne bacteria and their vectors in texas, usa, we screened ticks collected from humans during 2008-2014 for rickettsia, borrelia, and ehrlichia spp. thirteen tick species were identified, and 23% of ticks carried bacterial dna from at least 1 of the 3 genera tested. | 0 | 26811941 |
| fatal babesia canis canis infection in a splenectomized estonian dog. | a previously splenectomized dog from estonia was presented with a sudden lack of appetite and discoloration of the urine. despite supportive therapy, its condition deteriorated dramatically during 1 day. severe thrombocytopenia and high numbers of protozoan hemoparasites were evident in blood smears, and the hematocrit dropped from 46 to 33 %. the dog was euthanized before specific antibabesial treatment was initiated. blood samples from the dog and from two other dogs in the same household test ... | 2016 | 26810086 |
| update on canine and feline blood donor screening for blood-borne pathogens. | an update on the 2005 american college of veterinary internal medicine (acvim) consensus statement on blood donor infectious disease screening was presented at the 2015 acvim forum in indianapolis, indiana, followed by panel and audience discussion. the updated consensus statement is presented below. the consensus statement aims to provide guidance on appropriate blood-borne pathogen testing for canine and feline blood donors in north america. | 2016 | 26806261 |
| first detection and molecular identification of babesia vogeli from rhipicephalus sanguineus (acari: ixodidae) in taiwan. | a total of 578 rhipicephalus sanguineus ticks collected from dogs in taiwan were examined for babesia by species-specific polymerase chain reaction assay based on the 18s small subunit ribosomal rna (ssrrna) gene. babesia dna was detected in 1.04 % (6/578) of rh. sanguineus ticks. phylogenetic analysis revealed that these babesia spp. were genetically linked to the same clade within the genospecies of babesia vogeli and could be discriminated from other genospecies of babesia. intra-species anal ... | 2016 | 26796569 |
| assessment of the prophylactic speed of kill of frontline tri-act(®) against ticks (ixodes ricinus and rhipicephalus sanguineus) on dogs. | the objective of the study was to assess the speed of kill of a single topical treatment with a combination of fipronil and permethrin (frontline tri-act(®)/frontect(®)) against experimental infestations of ixodes ricinus and rhipicephalus sanguineus ticks on dogs. in this parallel group designed, randomised, single centre, controlled efficacy study, 16 healthy adult dogs were allocated to two groups: 8 dogs were treated with the topical combination on day 0 and the other 8 dogs served as untrea ... | 2016 | 26795064 |
| refractory hypoglycaemia in a dog infected with trypanosoma congolense. | a 20 kg german shepherd dog was presented to a french veterinary teaching hospital for seizures and hyperthermia. the dog had returned 1 month previously from a six-month stay in senegal and sub-saharan africa. biochemistry and haematology showed severe hypoglycaemia (0.12 g/l), anaemia and thrombocytopenia. despite administration of large amounts of glucose (30 ml of 30% glucose iv and 10 ml of 70% sucrose by gavage tube hourly), 26 consecutive blood glucose measurements were below 0.25 g/l (ex ... | 2016 | 26795063 |
| detection of bartonella tamiae, coxiella burnetii and rickettsiae in arthropods and tissues from wild and domestic animals in northeastern algeria. | in recent years, the scope and importance of emergent vector-borne diseases has increased dramatically. in algeria, only limited information is currently available concerning the presence and prevalence of these zoonotic diseases. for this reason, we conducted a survey of hematophagous ectoparasites of domestic mammals and/or spleens of wild animals in el tarf and souk ahras, algeria. | 2016 | 26791781 |
| molecular, biological, and morphometric comparisons between different geographical populations of rhipicephalus sanguineus sensu lato (acari: ixodidae). | in this study, different geographical populations of rhipicephalus sanguineus sensu lato were compared by molecular, biological, and morphometric methods. phylogenetic trees were constructed using 12s and 16s rdna sequences and showed two distinct clades: one composed of ticks from brazil (jaboticabal, sp), cuba (havana) thailand (bangkok) and the so-called "tropical strain" ticks. the second clade was composed of ticks from spain (zaragoza), argentina (rafaela, santa fe) and the so-called "temp ... | 2016 | 26790741 |
| molecular detection and identification of spotted fever group rickettsiae in ticks collected from the west bank, palestinian territories. | tick-borne rickettsioses are caused by obligate intracellular bacteria belonging to the spotted fever group (sfg) rickettsiae. although spotted fever is prevalent in the middle east, no reports for the presence of tick-borne pathogens are available or any studies on the epidemiology of this disease in the west bank. we aimed to identify the circulating hard tick vectors and genetically characterize sfg rickettsia species in ixodid ticks from the west bank-palestinian territories. | 2016 | 26771654 |
| molecular detection of crimean-congo haemorrhagic fever virus in ticks collected from infested livestock populations in a new endemic area, south of iran. | crimean-congo haemorrhagic fever (cchf) is a viral zoonotic disease with potentially fatal systemic effects on man. we aimed to determine the presence of cchf virus among collected ticks from domestic livestock from october 2012 to september 2013. | 2016 | 26758985 |
| ixodes scapularis tick saliva proteins sequentially secreted every 24 h during blood feeding. | ixodes scapularis is the most medically important tick species and transmits five of the 14 reportable human tick borne disease (tbd) agents in the usa. this study describes lc-ms/ms identification of 582 tick- and 83 rabbit proteins in saliva of i. scapularis ticks that fed for 24, 48, 72, 96, and 120 h, as well as engorged but not detached (bd), and spontaneously detached (sd). the 582 tick proteins include proteases (5.7%), protease inhibitors (7.4%), unknown function proteins (22%), immunity ... | 2016 | 26751078 |
| seroepidemiological studies of crimean-congo hemorrhagic fever virus in domestic and wild animals. | crimean-congo hemorrhagic fever (cchf) is a widely distributed, tick-borne viral disease. humans are the only species known to develop illness after cchf virus (cchfv) infection, characterized by a nonspecific febrile illness that can progress to severe, often fatal, hemorrhagic disease. a variety of animals may serve as asymptomatic reservoirs of cchfv in an endemic cycle of transmission. seroepidemiological studies have been instrumental in elucidating cchfv reservoirs and in determining endem ... | 2016 | 26741652 |
| [factors associated with ehrlichia canis infection in dogs infested with ticks from huanuco, peru]. | the aim of the study was to determine the frequency and associated factors of ehrlichia canis infection in dogs. blood samples from 150 dogs infested with ticks in 10 veterinary clinics in the city of huanuco in peru were collected. the dogs were randomly selected without regard to breed, age or sex. ehrlichia canis antibodies were detected by chromatographic immunoassay.51.3% of dogs were infected with ehrlichia canis. in the multivariate analysis, factors associated with the presence of ehrlic ... | 2015 | 26732926 |
| tick-borne rickettsial pathogens in questing ticks, removed from humans and animals in mexico. | tick-borne rickettsial diseases (tbrd) are commonly encountered in medical and veterinary clinical settings. the control of these diseases is difficult, requiring disruption of a complex transmission chain involving a vertebrate host and ticks. the geographical distribution of the diseases is related to distribution of the vector, which is an indicator of risk for the population. a total of 1107 were collected by tick drag from forests, ecotourism parks and hosts at 101 sites in 22 of the 32 sta ... | 0 | 26726019 |
| multiplex pcr for molecular screening of borrelia burgdorferi sensu lato, anaplasma spp. and babesia spp. | ticks transmit a great variety of pathogenic microorganisms to humans and animals. the detection of tick-borne pathogens (tbp) is mainly by molecular techniques based on polymerase chain reactions (pcr). | 2015 | 26706969 |
| molecular screening for rickettsia, anaplasmataceae and coxiella burnetii in rhipicephalus sanguineus ticks from malaysia. | a total of 44 rhipicephalus sanguineus ticks collected from 23 dogs from malaysia were screened for rickettsia, anaplasmataceae and coxiella burnetii. coxiella burnetii was detected in 59% (26/44) of ticks however rickettsia and anaplasmataceae were not detected in any of the ticks. in order to genotype the strains of c. burnetii, multispacer sequence typing (mst) was carried out using three different spacers. one of the spacers; cox2 successfully amplified a fragment for which the full length s ... | 2015 | 26691268 |
| the first detection of rickettsia aeschlimannii and rickettsia massiliae in rhipicephalus turanicus ticks, in northwest china. | rickettsia spp. belonging to the spotted fever group (sfg) cause infections in humans, domestic animals and wildlife. at least five sfg rickettsial species have been reported in china, but the occurrence of rickettsia aeschlimannii and r. massiliae in ticks has not been characterized to date. | 2015 | 26652857 |
| morphology, epidemiology, and phylogeny of babesia: an overview. | babesiosis is a tick-borne hemoprotozoan disease of domestic and wild animals. the disease is caused by various species of babesia and some species of babesia have also zoonotic significance. the parasite in vertebrate hosts' remains in erythrocytes and the morphology of babesia spp. is not uniform in all vertebrate hosts. with the advancement of science, particularly the use of molecular techniques made it easy to study the evolution of parasites and thereby reclassifying babesia spp. as per th ... | 0 | 26629451 |
| targeted silencing of the aquaporin 2 gene of rhipicephalus (boophilus) microplus reduces tick fitness. | ticks are blood-feeding arthropods that can affect human and animal health both directly by blood-feeding and indirectly by transmitting pathogens. the cattle tick rhipicephalus (boophilus) microplus is one of the most economically important ectoparasites of bovines worldwide and it is responsible for the transmission of the protozoan babesia bovis, the etiological agent of bovine babesiosis. aquaporins (aqps) are water channel proteins implicated in physiological mechanisms of osmoregulation. m ... | 2015 | 26626727 |
| seroprevalence and risk factors of ehrlichia canis infection among companion dogs of mashhad, north east of iran, 2009-2010. | the aims of this study were to determine the seroprevalence of canine ehrlichiosis and risk factors of this disease in companion dogs' population of mashhad, north east of iran. canine monocytic ehrlichiosis (cme) is a zoonotic disease transmitted by ticks, rhipicephalus sanguineus, and caused by an obligate intracellular bacterium, ehrlichia canis. | 2015 | 26623430 |
| vectors of crimean congo hemorrhagic fever virus in iran. | ticks are important vectors and reservoirs of crimean congo hemorrhagic fever (cchf) virus. human beings may be infected whenever the normal life cycle of the infected ticks on non-human vertebrate hosts is interrupted by the undesirable presence of humans in the cycle. a total of 26 species of argasid and ixodid ticks have been recorded in iran; including nine hyalomma, two rhipicephalus, two dermacentor, five haemaphysalis, two boophilus, one ixodes and two argas as well as three ornithodoros ... | 2015 | 26623426 |
| rickettsia rickettsii isolation from naturally infected amblyomma parvum ticks by centrifugation in a 24-well culture plate technique. | rocky mountain spotted fever is an acute illness caused by rickettsia rickettsii (r. rickettsii) and is transmitted by the bite of ticks of the genera dermacentor, amblyomma and rhipicephalus. the illness results in a high mortality rate and may be easily confused with other febrile syndromes. in yucatan state, mexico, childhood cases with a high mortality have been reported. in this work we report the isolation of a mexican r. rickettsii strain from a tick egg mass using an alternative method f ... | 2013 | 26623321 |
| molecular identification and characterization of anaplasma platys and ehrlichia canis in dogs in mexico. | the tick-borne pathogens ehrlichia canis and anaplasma platys are the causative agents of canine monocytic ehrlichiosis (cme) and canine cyclic thrombocytopenia (cct). although molecular evidence of e. canis has been shown, phylogenetic analysis of this pathogen has not been performed and a. platys has not been identified in mexico, where the tick vector rhipicephalus sanguineus sensu lato (s.l.) is common. the aim of this research was to screen, identify and characterize e. canis and a. platys ... | 2016 | 26615872 |
| dinotefuran-induced morphophysiological changes in the ovaries and midgut of semi-engorged females rhipicephalus sanguineus latreille, 1806 (acari: ixodidae) ticks. | the present study demonstrated the effects of dinotefuran (active compound of the protetor pet® acaricide) in germ cells and the digestive processes of semi-engorged females of r. sanguineus exposed to different concentrations of the chemical. for this purpose, 120 semi-engorged females were divided into four treatment groups with 30 individuals each: group i or control (distilled water), group ii (5000 ppm), group iii (6250 ppm), and group iv (8334 ppm of dinotefuran). all ticks were immersed i ... | 2016 | 26614361 |
| 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 | |
| first detection of ehrlichia canis in cerebrospinal fluid from a nonthrombocytopenic dog with meningoencephalitis by broad-range pcr. | 2015 | 26610407 |