Publications

ixodes (ixodes) pararicinus, n. sp. (acari: ixodoidea: ixodidae), a south american cattle tick long confused with ixodes ricinus.		1985	4045937
haemaphysalis juxtakochi, ixodes pararicinus (ixodidae) and otobius megnini (argasidae) in relation to the phytogeography of argentina.	the phytogeographical distributions of haemaphysalis juxtakochi, ixodes pararicinus and otobius megnini in argentina are described from material collected mainly from 1978 to the present. h. juxtakochi was found in the northwestern area of the amazonian domain and in the chaco, espinal and pampean provinces of the chaco domain. it was detected on mazama spp., tapirus terrestris, dog, cattle and on the vegetation. most findings of i. pararicinus were from mountain rangeland, where it was found on ...	1992	1290380
a review of the ticks (acari, ixodida) of brazil, their hosts and geographic distribution - 1. the state of rio grande do sul, southern brazil.	a review of the ticks (acari, ixodida) of the state of rio grande do sul, southern brazil, was completed as a step towards a definitive list (currently indicated as 12) of such species, their hosts and distribution. the ticks: argas miniatus (poultry), ixodes loricatus (opossums), amblyomma aureolatum (dogs), a. calcaratum (anteaters), a. cooperi (capybaras), a. nodosum (anteaters), a. tigrinum (dogs) (neotropical) and rhipicephalus sanguineus (dogs) (introduced, cosmopolitan, afrotropical) were ...	2000	10904399
characterization of spotted fever group rickettsiae in flea and tick specimens from northern peru.	evidence of spotted fever group (sfg) rickettsiae was obtained from flea pools and individual ticks collected at three sites in northwestern peru within the focus of an outbreak of febrile disease in humans attributed, in part, to sfg rickettsia infections. molecular identification of the etiologic agents from these samples was determined after partial sequencing of the 17-kda common antigen gene (htra) as well as pairwise nucleotide sequence homology with one or more of the following genes: glt ...	2004	15528680
ixodes (ixodes) pararicinus keirans & clifford, 1985 (acari: ixodidae): description of the immature stages, distribution, hosts and medical/veterinary importance.	the immature stages of the neotropical tick ixodes (ixodes) pararicinus keirans & clifford, 1985 are described from specimens in a laboratory colony initiated from engorged females collected on cattle and larvae fed on mice and chickens. the larva and nymph of i. pararicinus are described using sem micrographs as well as drawings for some features of the larva. additionally, immature stages of i. pararicinus collected on wild mice and birds in uruguay and argentina were compared with specimens f ...	2005	15864460
a collection of ticks (ixodidae) from wild birds in uruguay.	thirty nine wild birds from seven families (alcedinidae, emberizidae, furnariidae, parulidae, trochilidae, turdidae and tyrannidae) were caught from 4 to 7 of february, 2004 at rincón da vassoura (31 degrees 15' s 56 degrees 03' w) department of tacuarembó, uruguay. ninety one nymphs and forty one larvae of ixodidae were recovered from them. the majority of ticks were conventionally identified but 16s mitochondrial rdna sequences were obtained for larvae and nymphs of amblyomma with uncertain sp ...	2005	16132744
confirmation of tick bite by detection of antibody to ixodes calreticulin salivary protein.	ticks introduce a variety of pharmacologically active molecules into their host during attachment and feeding in order to obtain a blood meal. people who are repeatedly exposed to ticks may develop an immune response to tick salivary proteins. despite this response, people usually are unaware of having been bitten, especially if they are not repeatedly exposed to ticks. in order to develop a laboratory marker of tick exposure that would be useful in understanding the epidemiology of tick-borne i ...	2006	16928887
borrelia burgdorferi sensu lato infecting ticks of the ixodes ricinus complex in uruguay: first report for the southern hemisphere.	the borrelia burgdorferi sensu lato (s.l.) group comprises genetically related spirochetes, mostly associated with tick species belonging to the ixodes ricinus complex in the northern hemisphere. the present study evaluated borrelial infection in the tick ixodes pararicinus, which is the only representative species of the i. ricinus complex in uruguay. a total of 137 i. pararicinus ticks were collected from deer, cattle, or vegetation in 2 uruguayan departments. a part of these ticks was tested ...	2013	23402334
ticks (acari: ixodidae) on wild birds in north-central argentina.	ixodid ticks were collected from wild birds in five ecoregions in north-central argentina, namely: selva de las yungas, esteros del iberá, delta e islas del paraná, selva paranaense and chaco seco. a total of 2199 birds belonging to 139 species, 106 genera, 31 families and 11 orders were captured, but ticks were collected only from 121 birds (prevalence=5.5%) belonging to 39 species (28.1%) and three orders: tinamiformes (tinamidae) and falconiformes (falconidae) in selva de las yungas and passe ...	2014	25108788
validation of the taxon ixodes aragaoi fonseca (acari: ixodidae) based on morphological and molecular data.	the species ixodes aragaoi fonseca was described as ixodes ricinus aragaoi, and later placed in synonymy with ixodes affinis. however, this synonymy was rejected and the subspecies was elevated to species, and named as i. aragaoi. some researchers did not consider the validity of i. aragaoi and maintained the synonymy proposed until 1998 when i. aragaoi was revalidated, and it was suggested that ixodes pararicinus could be a synonym. the aim of this study was to confirm the taxonomic validity of ...	2014	25283212
borrelia infection in ixodes pararicinus ticks (acari: ixodidae) from northwestern argentina.	the aim of this work was to describe for the first time the presence of borrelia burgdorferi sensu lato infecting ticks in argentina. unfed specimens of ixodes pararicinus collected from vegetation in jujuy province were tested for borrelia infection by pcr targeting the gene flagellin (fla), the rrfa-rrlb intergenic spacer region (igs) and the 16s rdna (rrs) gene. one male and one female of i. pararicinus collected in jujuy were found to be positive to borrelia infection with the three molecula ...	2014	24979685
rickettsial infection in ticks infesting wild birds from two eco-regions of argentina.	several tick-borne rickettsia species are recognized human pathogens in argentina. here we evaluated rickettsial infection in ticks collected on passerine birds during 2011-2012 in two eco-regions of argentina. the ticks were processed by molecular analysis through polymerase chain reaction (pcr) detection and dna sequencing of fragments of two rickettsial genes, glta and ompa. a total of 594 tick specimens (532 larvae and 62 nymphs), representing at least 4 species (amblyomma tigrinum, ixodes p ...	2016	27580393
presence of borrelia in different populations of ixodes pararicinus from northwestern argentina.	this work was performed to evaluate the presence of borrelia in different populations of ixodes pararicinus from northwestern argentina (jujuy, salta and tucumán provinces). questing adults and nymphs of i. pararicinus were collected from vegetation, and i. pararicinus nymphs were also collected on birds. eighty-two ticks were tested for borrelia presence by pcr targeting the gene flagellin and the rrfa-rrlb intergenic spacer region. pools of ticks positive to borrelia were formed by two nymphs ...	2017	28262480
ticks infesting cattle and humans in the yungas biogeographic province of argentina, with notes on the presence of tick-borne bacteria.	this study was performed to determine the tick species that infest cattle and humans throughout an altitudinal gradient in the yungas biogeographic province of argentina. the presence of tick-borne bacteria of the genera rickettsia, ehrlichia and borrelia in the collected ticks was also evaluated. samples of ticks parasitizing cattle and humans were carried out in different seasons. questing ticks (adults and nymphs) were collected from vegetation and analyzed to detect the presence of rickettsi ...	2018	29380169