Publications

diversity of piroplasmids among wild and domestic mammals and ectoparasites in pantanal wetland, brazil.	piroplasmoses are one of the most prevalent arthropod-borne diseases of animals. the present work aimed to investigate the occurrence of piroplasmid in wild mammals, domestic dogs and ectoparasites in southern pantanal region, central-western brazil. for that purpose, blood or tissue samples from 31 nasua nasua, 78 cerdocyon thous, 7 leopardus pardalis, 42 dogs, 110 wild rodents, and 30 marsupials, and 1582 ticks were submitted to pcr assays for piroplasmid targeting 18srrna and hps70 genes. sev ...	2017	28941935
ticks and tick-borne pathogens of dogs along an elevational and land-use gradient in chiriquí province, panamá.	systematic acarological surveys are useful tools in assessing risk to tick-borne infections, especially in areas where consistent clinical surveillance for tick-borne disease is lacking. our goal was to identify environmental predictors of tick burdens on dogs and tick-borne infectious agents in dog-derived ticks in the chiriquí province of western panama to draw inferences about spatio-temporal variation in human risk to tick-borne diseases. we used a model-selection approach to test the relati ...	2017	28417248
tick-borne infections in dogs and horses in the state of espírito santo, southeast brazil.	this work aims to identify and quantify the percentage of rickettsia spp., ehrlichia spp., babesia spp. and hepatozoon spp. positive pet dogs, and to identify ticks collected on these animals in the state of espírito santo, in the southeast region of brazil. the study included 378 dogs, 226 females and 152 males, of various breeds and ages (mean age of 4.1 years). all animals were examined for ticks, and whole blood was collected and processed by conventional pcr protocols for babesia spp., anap ...	2018	29279085
rickettsia spp. among wild mammals and their respective ectoparasites in pantanal wetland, brazil.	the genus rickettsia comprises obligatory intracellular bacteria, well known to cause zoonotic diseases around the world. the present work aimed to investigate the occurrence of rickettsia spp. in wild animals, domestic dogs and their respective ectoparasites in southern pantanal region, central-western brazil, by molecular and serological techniques. between august 2013 and march 2015, serum, whole blood and/or spleen samples were collected from 31 coatis, 78 crab-eating foxes, seven ocelots, 4 ...	2018	29111373
contributions to the knowledge of hard ticks (acari: ixodidae) in colombia.	the known tick fauna of colombia includes 58 species (15 argasidae and 43 ixodidae). to add to the knowledge of the biology of ticks in colombia, hard ticks (ixodidae) were collected from domestic animals or vegetation during 2014-2016 in 10 of colombia's departments. ticks were identified to species through morphological examinations. taxonomic identification was confirmed for some specimens by molecular methods, including phylogenetic analyses inferred from three tick genes (cytochrome c oxida ...	2018	29055642
experimental infection in cavia porcellus by infected amblyomma ovale nymphs with rickettsia sp. (atlantic rainforest strain).	this study describes experimental infection of guinea pigs (cavia porcellus) infested with naturally infected amblyomma ovale nymphs with rickettsia sp. (atlantic rainforest strain), and the capacity of a. ovale nymphs to transmit this bacterium. twenty-six guinea pigs were divided into the following groups: g1, 10 animals infested with uninfected a. ovale nymphs; g2, 10 animals infested with nymphs infected with rickettsia sp. (atlantic rainforest strain); and g3, 6 animals without tick infesta ...	2018	29374783
rickettsia africae and novel rickettsial strain in amblyomma spp. ticks, nicaragua, 2013.	we report molecular detection of rickettsia africae in amblyomma ovale ticks from nicaragua and a novel rickettsial strain in an a. triste tick. of 146 ticks from dogs, 16.4% were rickettsia pcr positive. the presence of rickettsia spp. in human-biting ticks in nicaragua may pose a public health concern.	2018	29350167