Publications

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prevalence of ehrlichia canis (rickettsiales: anaplasmataceae) in dogs and rhipicephalus sanguineus (acari: ixodidae) ticks from brazil.the current study evaluated the prevalence of ehrlichia canis donatien and lestoquard in domestic dogs, canis familiaris l., and rhipicephalus sanguineus (latreille) (acari: ixodidae) ticks from different areas of brazil. in monte negro county (state of rondônia, brazilian western amazon), the indirect immunofluorescence assay detected e. canis-reactive antibodies (titer > or = 40) in 58/153 (37.9%) and 40/161 (24.8%) dogs from the urban and rural areas, respectively. these values were significa ...200717294930
genetic and antigenic diversities of major immunoreactive proteins in globally distributed ehrlichia canis strains.the extent of knowledge regarding the diversity of globally distributed ehrlichia canis strains has been limited to information gained from a few evolutionarily conserved genes. in this study, e. canis strains from the united states (strain jake [us]), brazil (strain são paulo [br]), and israel (strain 611 [is] and ranana [is-r]) were used to examine the antigenic and genetic diversities of four well-characterized major immunoreactive protein genes/proteins. gp36 and gp200 were the most divergen ...200818480237
[ehrlichia canis in dogs attended in a veterinary hospital from botucatu, são paulo state, brazil].this study investigated the etiology of canine ehrlichiosis and possible clinical and epidemiological data associated with the infection in 70 dogs suspect of ehrlichiosis attended at the veterinary hospital of the são paulo state university in botucatu city during 2001 and 2002. dogs were evaluated by clinical-epidemiological and hematological data and molecular analysis by partial amplification and dna sequencing of the ehrlichial dsb gene. e. canis dna was amplified and sequenced in 28 (40.0% ...200919772777
surveillance for zoonotic vector-borne infections using sick dogs from southeastern brazil.for many vector-borne organisms, dogs can be used as sentinels to estimate the risk of human infection. the objective of this study was to use dogs as sentinels for multiple vector-borne organisms in order to evaluate the potential for human infection with these agents in southeastern brazil. blood from 198 sick dogs with clinicopathological abnormalities consistent with tick-borne infections were selected at the são paulo state university veterinary teaching hospital in botucatu and tested for ...200718021025
a preliminary investigation of ehrlichia species in ticks, humans, dogs, and capybaras from brazil.a molecular epidemiologic investigation in two brazilian states (rondônia and são paulo) was undertaken to determine if ehrlichia species responsible for human and animal ehrlichioses in north america could be found in brazilian vectors, potential natural mammalian reservoirs and febrile human patients with a tick bite history. samples, including 376 ticks comprising 9 amblyomma species, 29 capybara (hydrochaeris hydrochaeris) spleens, 5 canine blood, and 75 human blood samples from febrile pati ...200716962245
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