Publications

ticks (acari: ixodidae) associated with domestic dogs in franca region, são paulo, brazil.	ticks on 140 domestic dogs from both urban and rural areas of franca region in são paulo state were identified with 102 dogs from urban areas and 38 from rural areas. of urban dogs, 27.5% were infested exclusively by rhipicephalus sanguineus ticks. of the rural dogs, 36.8% were infested with the following tick species: r. sanguineus, boophilus microplus, amblyomma ovale and a. cajennense. mixed infestations included a dog hosting a. cajennense and a. ovale and another with b. microplus and r. sa ...	2001	12455880
hepatozoon canis infection associated with dog ticks of rural areas of rio de janeiro state, brazil.	hepatozoon canis is a tick-borne protozoan that infects dogs and has been reported throughout the world. manifestation of h. canis infection varies from being sub-clinical in apparently healthy dogs to severe illness. the main vector of the infection is the dog tick, rhipicephalus sanguineus although other species may also transmit this agent. h. canis has been reported previously in brazil, but mostly as an occasional finding during laboratory exams and always associated with other diseases. th ...	2001	11113545
ticks (acari: ixodidae) associated with wild animals in the pantanal region of brazil.	this paper describes the identification of ticks from wild animals of the pantanal region in brazil as part of a comprehensive study about established and emerging tick-host relationships and related pathological aspects. eighty-one animals were captured (representing 13 species, six orders), and ticks were found on 63 (78%). tick species identified included boophilus microplus (canestrini), amblyomma cajennense (f.), amblyomma parvum aragão, amblyomma pseudoconcolor aragão, amblyomma scalpturat ...	2000	11126563
ticks (acari: ixodidae) associated with rural dogs in uruará, eastern amazon, brazil.	a survey of 124 dogs for ticks was conducted from august to november 1998 in 68 small farms of uruará municipality in eastern amazon-brazil. we collected 55 ticks from 18 dogs (14.5%). amblyomma oblongoguttatum koch, amblyomma ovale koch, and amblyomma cajennense (f.) were found on nine, six, and one dog, respectively. fourteen small farms (20.5%) had at least one dog with ticks.	2000	11004794
report on ticks collected in the southeast and mid-west regions of brazil: analyzing the potential transmission of tick-borne pathogens to man.	specimens of ticks were collected in 1993, 1996, 1997, and 1998, mostly from wild and domestic animals in the southeast and mid-west regions of brazil. nine species of amblyommidae were identified: anocentor nitens, amblyomma cajennense, amblyomma ovale, amblyomma fulvum, amblyomma striatum, amblyomma rotundatum, boophilus microplus, boophilus annulatus, and rhipicephalus sanguineus. the potential of these tick species as transmitters of pathogens to man was analyzed. a flaviviridade flavivirus ...	1999	10881097
update on tick-borne rickettsioses around the world: a geographic approach.	tick-borne rickettsioses are caused by obligate intracellular bacteria belonging to the spotted fever group of the genus rickettsia. these zoonoses are among the oldest known vector-borne diseases. however, in the past 25 years, the scope and importance of the recognized tick-associated rickettsial pathogens have increased dramatically, making this complex of diseases an ideal paradigm for the understanding of emerging and reemerging infections. several species of tick-borne rickettsiae that wer ...	0	24092850
serological survey of ehrlichia species in dogs, horses and humans: zoonotic scenery in a rural settlement from southern brazil.	the aims of this study were to determine the seroprevalence of ehrlichia spp. and risk factors for exposure in a restricted population of dogs, horses, and humans highly exposed to tick bites in a brazilian rural settlement using a commercial elisa rapid test and two indirect immunofluorescent assays (ifa) with e. canis and e. chaffeensis crude antigens. serum samples from 132 dogs, 16 horses and 100 humans were used. fifty-six out of 132 (42.4%) dogs were seropositive for e. canis. dogs > one y ...	0	24037288