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Garrapatas exóticas: hallazgo de Amblyomma latum Koch, 1844 (Acari: Ixodidae) parasitando Python regius (Serpentes: Boidae) en Uruguay
Venzal, José Manuel; Nava, Santiago; Guglielmone, Alberto (Sociedad de Medicina Veterinaria del Uruguay, 2007-12)La introducción de parásitos vectores a través de animales exóticos adquiridos como mascotas puede generar riesgos sanitarios. El ingreso de garrapatas que usan como hospedadores reptiles exóticos ha sido reportado en ... -
Ixodes schulzei Aragão & Fonseca, 1951 in Argentina
Lamattina, Daniela; Venzal, José Manuel; Guglielmone, Alberto Alejandro; Nava, Santiago (2016-06)Two females of Ixodes schulzei Aragão & Fonseca, 1951 were collected from Nectomys squamipes (Rodentia: Cricetidae: Sigmodontinae) at Iguazú National Park, Misiones Province, Argentina. This is the first record of this ... -
Ixodes silvanus n. sp. (Acari: Ixodidae), a new member of the subgenus Trichotoixodes Reznik, 1961 from northwestern Argentina
Saracho Bottero, Maria Noelia; Beati, Lorenza; Venzal, José Manuel; Guardia Claps, Leonor; Thompson, Carolina Soledad; Mangold, Atilio Jose; Guglielmone, Alberto; Nava, Santiago (Elsevier, 2020-09)Females, nymphs, and larvae of Ixodes silvanus n. sp. collected from birds and from the vegetation in northwestern Argentina (Yungas Phytogeographic Province) are described herein. The new species belongs to the subgenus ... -
Low Genetic Diversity of the Only Clade of the Tick Rhipicephalus microplus in the Neotropics
Díaz-Sánchez, Sandra; Hernández-Triana, Luis M.; Labruna, Marcelo B.; Merino, Octavio; Mosqueda, Juan; Nava, Santiago; Szabó, Matías P.J.; Tarragona, Evelina Luisa; Venzal, José Manuel; de La Fuente, José; Estrada-Peña, Agustín (MDPI, 2023-11)This study addresses the variability of the mitochondrial cytochrome oxidase subunit I (COI) and 16S rDNA (16S), and nuclear internal transcriber spacer ITS2 (ITS2) genes in a set of field-collected samples of the cattle ... -
Molecular characterization of novel Ehrlichia genotypes in Ixodes auritulus from Uruguay
Félix, María L.; Muñoz-Leal, Sebastian; Carvalho, Luis A.; Queirolo, Diego; Remesar Alonso, Susana; Nava, Santiago; Armúa-Fernández, María T.; Venzal, José Manuel (Elsevier, 2021-04)Ehrlichia are small intracellular Gram-negative bacteria transmitted by ticks. These microorganisms cause ehrlichiosis, a complex of life-threatening emerging zoonoses and diseases of global veterinary relevance. The aim ... -
Molecular detection of rickettsial bacteria in ticks of the genus Ixodes from the Southern Cone of America
Sebastian, Patrick Stephan; Flores, Fernando Sebastian; Saracho Bottero, Maria Noelia; Tarragona, Evelina Luisa; Venzal, José Manuel; Nava, Santiago (Elsevier, 2020-10)To obtain information about rickettsial bacteria in ticks of the genus Ixodes from Argentina and Uruguay, specimens of I. fuscipes (previously named as I. aragaoi), Ixodes pararicinus, Ixodes sp. cf. I. affinis, and Ixodes ... -
Molecular evidence and additional morphological characters to distinguish Ornithodoros brodyi and Ornithodoros yumatensis (Ixodida: Argasidae) in their different developmental stages
Guzman Cornejo, Carmen M.; Garcia-Prieto, Luis; Rebollo-Hernandez, Andrea; Nava, Santiago; Sanches-Montes, Sokani; Venzal, José Manuel (2017)Ornithodoros brodyi and Ornithodoros yumatensis are two species distributed in the Americas and associated with bats and caves. Both species have similar morphology, and the diagnostic traits of adults have not been detailed ... -
Molecular evidence of Babesia species in Procyon cancrivorus (Carnivora, Procyonidae) in Uruguay
Thompson, Carolina Soledad; Mangold, Atilio Jose; Félix, María L.; Carvalho, Luis A.; Armúa-Fernández, María Teresita; Venzal, José Manuel (2018-08)The crab-eating raccoon (Procyon cancrivorus) is a carnivore widely distributed from southern Central America to all South American countries except Chile. In the Southern cone of America, P. cancrivorus has been found ... -
Morphological descriptions of the nymph and adults of Ornithodoros clarki, the larva and nymph of Ornithodoros rondoniensis, with notes on their phylogenetic relationships
Labruna, Marcelo B.; Nava, Santiago; Rebollo Hernández, Andrea; Guzman Cornejo, Carmen M.; Hernández, Ligia V.; Domínguez, Lillian; Muñoz-Leal, Sebastian; Venzal, José Manuel (Springer, 2021-03-26)Based on tick specimens collected recently in Mexico, Nicaragua, Panama and Brazil, we provide morphological descriptions of the nymph and adults of Ornithodoros clarki Jones & Clifford, 1972 from the first three countries, ... -
New records of soft ticks (Acari: Argasidae) from caves in Brazil, with a morphological study of Ornithodoros fonsecai and an analysis of the taxonomic status of Antricola inexpectata
Oliveira, Glauber M.B. de; Muñoz-Leal, Sebastian; Nava, Santiago; Horta, Mauricio Claudio; Bernardi, Leopoldo; Venzal, José Manuel; Labruna, Marcelo B. (Elsevier, 2024-05)In this study, we report soft ticks from bat-inhabiting caves in different areas of Brazil. From 2010 to 2019, we collected 807 tick specimens from nine caves located in four Brazilian states among two biomes. Ticks were ... -
Niche divergence among closely related taxa provides insight on evolutionary patterns of ticks
Cuervo, Pablo Fernando; Flores, Fernando Sebastián; Venzal, José Manuel; Nava, Santiago (Wiley, 2021-09)Aim: Understanding the degree to which closely related taxa diverge in their niche traits could provide insight on their evolutionary patterns, as well as shed some light on the mechanisms underpinning broad-scale biogeographic ... -
Novel Anaplasma (Rickettsiales: Anaplasmataceae) strain and Hepatozoon sp. cf. H. procyonis (Apicomplexa, Hepatozoidae) detected in Procyon cancrivorus (Carnivora, Procyonidae) from Argentina, with note of tick-host association
Tarragona, Evelina Luisa; Sebastian, Patrick; Félix, Maria L.; Venzal, José Manuel (Springer, 2023-04)The aim of this work is to report the first detection of Procyon cancrivorus naturally co-infected with Hepatozoon sp. cf. H. procyonis and a novel Anaplasma strain from South America and potential vector tick species ... -
A novel Ehrlichia strain (Rickettsiales: Anaplasmataceae) detected in Amblyomma triste (Acari: Ixodidae), a tick species of public health importance in the Southern Cone of America
Cicuttin, Gabriel L.; De Salvo, María Nazarena; Díaz Pérez, Paula; Silva, Darío; Félix, María Laura; Venzal, José Manuel; Nava Santiago (Taylor & Francis, 2020)The aim of this work was to report the detection of a putative novel Ehrlichia strain associated with the tick Amblyomma triste. Free-living adult ticks determined as A. triste were collected by drag-sampling in Argentina ... -
One health approach to identify research needs on Rhipicephalus microplus ticks in the Americas
Estrada-Peña, Agustín; Rodriguez Mallon, Alina; Bermudez, Sergio; Domingos, Ana; Estrada Garcia, Mario Pablo; Labruna, Marcelo B.; Merino, Octavio; Nava, Santiago; Tarragona, Evelina Luisa; Venzal, José Manuel; de La Fuente, José; Mosqueda, Juan; Lleonart Cruz, Ricardo (MDPI, 2022-10)We aim to provide a harmonized view of the factors that affect the survival and promote the spread of R. microplus in the Neotropics, approaching its different facets of biology, ecology, distribution, and control. We ... -
Ornithodoros peropteryx (Acari: Argasidae) in Bolivia: an argasid tick with a single nymphal stage
Venzal, José Manuel; Nava, Santiago; Terassini, Flavio A.; Ogrzewalska, Maria; Camargo, Luis Marcelo A.; Labruna, Marcelo B. (2013-10)By the end of the 1960s, the argasid tick Ornithodoros peropteryx was described from larval specimens collected from the bat Peropteryx macrotis in Colombia. Since its original description, no additional record of O. ... -
Ornithodoros quilinensis sp. nov. (Acari, Argasidae), a new tick species from the Chacoan region in Argentina
Venzal, José Manuel; Nava, Santiago; Mangold, Atilio Jose; Mastropaolo, Mariano; Casás, Gustavo; Guglielmone, Alberto (Springer, 2012-09)Ornithodoros quilinensis sp. nov. (Acari: Argasidae) is described from larvae collected on the small rodents Graomys centralis (Cricetidae: Sigmodontinae) in Argentina. The diagnostic characters for this new species are a ... -
Presence of Borrelia in different populations of Ixodes pararicinus from northwestern Argentina
Saracho Bottero, Maria Noelia; Sebastian, Patrick Stephan; Carvalho, Luis A.; Guardia Claps, Leonor; Mastropaolo, Mariano; Mangold, Atilio Jose; Venzal, José Manuel; Nava, Santiago (2017)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 ... -
Rhipicephalus sanguineus (Latreille, 1806): Neotype designation, morphological re-description of all parasitic stages and molecular characterization
Nava, Santiago; Beati, Lorenza; Venzal, José Manuel; Labruna, Marcelo B.; Szabó, Matías P.J.; Petney, Trevor; Saracho Bottero, Maria Noelia; Tarragona, Evelina Luisa; Dantas-Torres, Filipe; Silva, Maria M. Santos; Mangold, Atilio Jose; Guglielmone, Alberto; Estrada-Peña, Agustín (2018-09)The aims of this work were to re-describe all parasitic stages of Rhipicephalus sanguineus sensu stricto, to select and deposit a neotype, and to characterize some of its diagnostic molecular traits. A male of R. sanguineus ... -
Rickettsia spp., Ehrlichia sp. and Candidatus Midichloria sp. associated to ticks from a protected urban area in Buenos Aires City (Argentina)
Cicuttin, Gabriel L.; De Salvo, María Nazarena; Venzal, José Manuel; Nava, Santiago (Springer, 2022-01)The aim of this study was to determine the infection with Rickettsiales in ticks and birds from the main protected urban area of Buenos Aires City (Argentina). One Amblyomma aureolatum (0.2%) and one Ixodes auritulus (0.1%) ... -
Species occurrence of ticks in South America, and interactions with biotic and abiotic traits
Estrada-Peña, Agustín; Nava, Santiago; Tarragona, Evelina Luisa; Bermúdez, Sergio; de la Fuente, José; Domingos, Ana; Labruna, Marcelo B.; Mosqueda, Juan; Merino, Octavio; Szabó, Matías P.J.; Venzal, José Manuel; Guglielmone, Alberto (Springer Nature, 2019-12)The datasets of records of the distribution of ticks and their hosts are invaluable tools to understand the phylogenetic patterns of evolution of ticks and the abiotic traits to which they are associated. Such datasets ...