| [chagas disease: vector control activities in the state of são paulo, brazil]. | | 1979 | 122244 |
| canine hepatitis virus infections in dogs of são paulo city, brazil. | infectious canine hepatitis virus was isolated from 10 of 51 tested dogs caught in são paulo and neighbouring districts. the viruses were isolated in dog kidney cell cultures from fecal specimens and, in two instances, from the non-inoculated cell cultures themselves. all the isolated virus strains presented biological and physicochemical characteristics proper to the adenovirus and were immunologically identified as ich virus. specific neutralizing antibodies to the ich virus were found in 50% ... | 1975 | 1236060 |
| polycystic hydatid disease (echinococcus vogeli). clinical, laboratory and morphological findings in nine brazilian patients. | polycystic hydatid disease occurs in neotropical zones and is caused by echinococcus vogeli. the paca, a wild rodent, is the intermediate host and the final host is the dog. seven cases of polycystic hydatid disease autochthonous to the brazilian amazon region are described. the disease was polycystic in all cases and diagnosis was based on anatomopathological findings. e. vogeli was identified by the shape and dimensions of the rostellar hooks. the liver was the organ most often involved (6/7), ... | 1992 | 1500684 |
| [isolation and identification of leishmania braziliensis braziliensis, in human cases and domestic dog, in the state of são paulo]. | | 1986 | 3509356 |
| [toxoplasmosis in wild and domestic animals of the botucatu region, state of são paulo, brazil]. | | 1985 | 3898317 |
| [report on chagas' disease in brasil and especially in the state of são paulo]. | | 1968 | 4973515 |
| [studies on wild reservoirs and vectors of "trypanosoma cruzi". xxi: observations on the association between reservoirs and vectors, with special reference to the northeast region of the state of são paulo]. | | 1968 | 4977007 |
| [house infestation caused by triatoma infestans and various epidemiologic aspects of american trypanosomiasis in an area of the state of são paulo, brazil]. | | 1969 | 4984570 |
| [various epidemiologic aspects of human exposure to the risk of infection by rabies virus in são paulo, brazil]. | | 1970 | 5535342 |
| [serological survey for research on visceral leishmaniasis in an urban dog population of the municipality of são paulo, brazil (1979-1982)]. | | 1983 | 6369491 |
| [autochthonous case of american trypanosomiasis in the southern coast of são paulo state, brazil]. | | 1980 | 6776619 |
| [seasonal variation in the prevalence of leptospirosis in stray dogs in são paulo, brazil]. | | 1980 | 7268298 |
| canine brucellosis in são paulo: serologic survey of kennel and stray dogs. | | 1981 | 7333787 |
| [analysis of human anti-rabies post exposure treatment in the great area of sao paulo, brazil]. | the treatment of human beings with risk of exposure to rabies virus infection still presents some cases of undesirable post treatment reactions. the knowledge resulting from the regular analysis of the epidemiological features associated with these practices would minimize the occurrence of these troubles. | 1999 | 10457003 |
| the isolation of leptospires from stray dogs in the city of são paulo, brazil. | the search of leptospires was conducted in kidneys of 1,415 stray dogs in the city of são paulo--brazil. from them 35 isolations were got, serovar canicola was the most frequent (32 samples) followed by copenhageni (2 samples) and pomona (1 sample). for the first time serovar pomona was isolated from dog in latin america. also, monthly and seasonal variations are discussed in relation to the prevalence of leptospirosis. | 1980 | 7251258 |
| [epidemiological research of a new case of visceral leishmaniasis in greater são paulo, brazil]. | | 1982 | 7156848 |
| identification of leishmania mexicana mexicana in the state of são paulo, brazil. | | 1983 | 6622922 |
| [kentaro takaoka hospital das clinicas de são paulo and anesthesiology]. | | 1969 | 4900879 |
| animal histoplasmosis in brazil. isolation of histoplasma capsulatum from a dog on the northern coast of são paulo. | | 1985 | 4000182 |
| rabies in the state of são paulo: the rodents question. | | 1987 | 3629118 |
| [ancylostoma and toxocara infestation in dogs and cats captured in the streets, são paulo (brazil)]. | | 1988 | 3241955 |
| human, canine and equine (equus caballus) leishmaniasis due to leishmania braziliensis (= l. braziliensis braziliensis) in the south-west region of são paulo state, brazil. | | 1990 | 2215227 |
| [ecological aspects of american tegumentary leishmaniasis: 8. evaluation of the enzootic activity of leishmania (viannia) braziliensis, in forest and peridomiciliary environments of the ribeira valley region, são paulo state, brazil]. | the evidence of mucocutaneous leishmaniasis transmission in the non-forest environment in the ribeira valley region, são paulo, brazil, has made this epidemiologic four years' study possible, viewing the enzootic activity of l. (v.) braziliensis. furthermore, the natural infection in small mammals and the domestic dog population has been completed in collecting of phlebotomine sandflies in the forest and peridomiciliar environments. positive test-results have only been found in resident dogs (ca ... | 1990 | 2095626 |
| gynandromorphism in amblyomma cajennense and rhipicephalus sanguineus (acari: ixodidae). | during a survey of ticks on horses in november 2000, at the university of são paulo farm in pirassununga county, são paulo, brazil, 1 gynandromorph of amblyomma cajennense was collected from a naturally infested horse. in another survey on dogs in march 2001, in the urban area of monte negro, rondônia, brazil, a gynandromorph of rhipicephalus sanguineus was collected from a naturally infested dog. both specimens are described and classified as perfect bipartite protogynanders. | 2002 | 12197141 |
| [são paulo pasteur institute technique for estimating a canine population]. | this paper describes a technique developed by the pasteur institute in são paulo, brazil, for counting and classifying a canine population according to levels of dependency and confinement. first, a household survey was performed to identify dogs with owners and their degree of restriction. different-colored collars were given to totally and partially restricted dogs. dogs cared for by individuals who did not consider themselves the owners received collars of a third color. after the survey, sur ... | 2002 | 12244375 |
| [liver transplantation in children: initial experience of the instituto da criança of the hospital das clínicas of universidade de são paulo]. | the initial experience at the instituto da criança do hospital das clínicas--school of medicine of são paulo university with liver transplantation in children is presented. a staff experienced in the management of children, including pediatric surgeons, hepatologists, critical care specialists, anesthesiologists, and other has been joined to draw therapeutic protocols. afterward, more than 100 experimental liver transplant were performed in animals of medium size (dogs and pigs). from september, ... | 1991 | 1668627 |
| 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 |
| host-feeding patterns of potential human disease vectors in the paraíba valley region, state of säo paulo, brazil. | engorged females of aedes albopictus, ochlerotatus scapularis, culex nigripalpus and culex quinquefasciatus were collected by aspiration and sweep net during two years in tremembé county, state of säo paulo, brazil. of the 1,092 specimens analyzed with the precipitin test, 87.6% reacted to one or more of the eight antisera tested. of the four species for which the host determination was made, the reaction in 98.5% was to a single host. the application of the feeding index for four species of mos ... | 2003 | 12831131 |
| human infection by phagicola sp. (trematoda, heterophyidae) in the municipality of registro, são paulo state, brazil. | in 1988, nine cases of human parasitism by phagicola sp. were diagnosed in the municipality of registro (são paulo state, brazil) by stool examinations, in patients who ate raw mullet (mugil sp.). six (66%) of the nine patients suffered from flatulence and four (44%) had diarrhoeal episodes; six (66%) showed slight eosinophilia. on the same occasion, 61 dogs and 11 cats from registro were also submitted to stool examination. only one dog (1.6%) showed phagicola eggs in the stool. all patients we ... | 1992 | 1404559 |
| [canine leptospirosis in the state of são paulo (author's transl)]. | in this paper the occurrence of leptospirosis was studied by the search of agglutininis antileptospira, in 10 dogs with symptoms of the disease. another group of 22 animals with hepatic or renal insufficiency was also studied for the correlation between both insufficiency and leptospirosis. finally, a third group of 40 dogs, clinically normal, was also included in this study. in 60% of suspected cases the clinical diagnosis was confirmed by the presence of specific agglutinins to serotypes icter ... | 1975 | 1242081 |
| [toxoplasmosis in dogs in são paulo]. | | 1976 | 935734 |
| [toxoplasmosis in animals of sao paulo, brazil]. | | 1977 | 601428 |
| [epidemiological survey of a case of visceral leishmaniasis autochthonous in greater são paulo, brazil]. | | 1979 | 515671 |
| rabies seroprevalence of street dogs from são paulo city, brazil. | a sample of 602 street dogs captured by the são paulo zoonosis-control municipal service was analyzed for the presence of serum antibodies against the rabies virus and compared to a control sample of 37 dogs from the kennel of the police of são paulo. data were stratified into 4 age intervals and the age from the street-dog sample was estimated by general aspects and dental observation according to standard techniques. we assumed that seropositivity was due to previous vaccination (no sub-clinic ... | 2000 | 10760397 |
| [serological survey for american cutaneous leishmaniasis in stray dogs in the s. paulo state, brazil]. | a serological survey was made in 973 stray dogs caught near green areas in s. paulo county by the indirect immunofluorescence test. no positive serum was found, however autochthonous human cases of acl that occurred in the county show the circulation of the parasite in the environment. this fact, associated with the existence of the vectors and the apparent absence of infected dogs in the areas studied, suggest that stray dog plays an insignificant role in the spread of the parasite. the cycle o ... | 1999 | 10689382 |
| [rabies epizootic in the urban area of ribeirão preto, são paulo, brazil]. | this report describes some epidemiological aspects of a rabies epizootic that started in 1995 in the urban area of ribeirão preto, sp, brazil, and discusses its main causes. all laboratory confirmed cases were described according to a set of epidemiological variables. simultaneously, information was raised concerning rabies vaccine coverage and epidemiological surveillance activities. in addition to one human case, 58 rabid animals were confirmed in 1995 (54 dogs, 3 cats. and 1 bat). there were ... | 1998 | 9878906 |
| the first two cases of cyclospora in dogs, são paulo, brazil. | cyclospora cayetanensis is a coccidium which has been identified in diarrheal feces or immunocompetent individuals or in aids patients. the main aspects related to its epidemiology and pathogeny have not been solved so far, as well as the possibility of human infection by this protozoan being a zoonosis. we describe in this work the first case identifying the cyclospora in dogs. our findings, notwithstanding their preliminary characteristics, could suggest that besides untreated water, other tra ... | 1997 | 9460261 |
| epidemiological aspects of the brazilian spotted fever: serological survey of dogs and horses in an endemic area in the state of são paulo, brazil. | in order to obtain information on brazilian spotted fever, a study in domestic animals was performed in the county of pedreira, state of são paulo, brazil, where 17 human cases had been notified. serum samples obtained from animals were tested by indirect immunofluorescence for detectable antibodies to spotted fever-group rickettsiae. seropositivity was revealed in 12 (36.4%) of 33 dogs and seven (77.8%) of nine horses from the endemic area. for comparison, blood samples from dogs and horses fro ... | 1996 | 9293089 |
| potential force of infection of human rabies transmitted by vampire bats in the amazonian region of brazil. | human rabies transmitted by bats has acquired greater epidemiologic relevance in various latin american countries, just when cases transmitted by dogs have decreased. concern has been heightened by reports of increased rates of bats biting humans in villages in the amazonian region of brazil. the aim of the present work was to estimate the potential force of infection (per capita rate at which susceptible individuals acquire infection) of human rabies transmitted by the common vampire bat if the ... | 1996 | 9025698 |
| primary myiasis in dog caused by phaenicia eximia (diptera:calliphoridae) and preliminary mitochondrial dna analysis of the species in brazil. | a case of primary myiasis in a dog caused by phaenicia eximia (robineau-desvoidy) in brazil is presented. a young and healthy female dog, canis familiaris, approximately 10 d old and still under maternal care, was found to have several eggs and 1st instars larvae in its abdomen and urogenital regions. samples were collected in campinas, são paulo, and transferred to the laboratory for rearing and identification. a comparative analysis of the mitochondrial dna (mtdna) with 12 restriction enzymes ... | 1996 | 8840693 |
| epidemiological study of sporotrichosis and histoplasmosis in captive latin american wild mammals, são paulo, brazil. | sporotrichosis and histoplasmosis are deep mycosis with a high incidence in human beings in brazil. in domestic animals histoplasmosis has been described only in dogs, but the occurrence of sporotrichosis among domestic animals in brazil has been described in dogs, cats, mules and asses. there is also a case of this disease reported in a chimpanzee (pan troglodites). the purpose of this research was to perform an epidomiological study of these mycoses using delayed hypersensitivity tests (histop ... | 1994 | 8028639 |
| ecoepidemiological aspects of american cutaneous leishmaniasis in the state of são paulo, brazil. | the aim of this study is to review some of the ecoepidemiological aspects of american cutaneous leishmaniasis (acl) in the state of são paulo, brazil. during the first half of this century acl occurred in são paulo, predominantly on the bank of the tietê river, where there were railroad constructions and there was inevitable contact between workers and forested areas. man's activities resulted in a drastic reduction of the forested regions of the state and molded the present landscape found in s ... | 1994 | 7476228 |
| [american cutaneous leishmaniasis on the southern coast of são paulo state]. | | 1980 | 7348814 |
| [estimation of the dog and cat population in the state of são paulo]. | to estimate the total dog and cat population with owners in order to enable better planning of the control actions against diseases involving these animals. | 2005 | 16341397 |
| toxocara spp. eggs in public squares of sorocaba, são paulo state, brazil. | the visceral larva migrans (vlm) is a syndrome observed in human infection with helminth larval eggs such as the toxocara spp. that usually infects dogs and cats. among the risk factors involved in the occurrence of vlm, particularly important is the size of these animal populations. sorocaba is a city with a dog population twice as large as that recommended by the world health organization. this fact has led to a survey of the presence of toxocara spp. eggs in public square soils of this city. ... | 2001 | 11557996 |
| [use of spatial analysis tools in the epidemiological surveillance of american visceral leishmaniasis, araçatuba, são paulo, brazil, 1998-1999]. | the control of american visceral leishmaniasis (avl) is based on combating the vector and eliminating the domestic reservoir of the focus area - defined as 200 meters around human or canine cases. this paper discusses the use of spatial analysis techniques in the epidemiological surveillance of avl in araçatuba, são paulo state, in order to propose a model for territorial epidemiological surveillance, reformulating current control strategies. the results showed that avl transmission was not homo ... | 2001 | 11679900 |
| borrelia burgdorferi antibodies in dogs from cotia county, são paulo state, brazil. | dogs sera samples collected from cotia county, são paulo were tested using indirect immunoenzymatic test (elisa) in order to study lyme disease serology in dogs. elisa method was standardized and g39/40 north american strain of borrelia burgdorferi was used as antigen. positive results were confirmed employing the western blotting technique. because of the possibility of cross-reactions, sera were also tested for different serological strains of leptospira interrogans and l. biflexa using micros ... | 2001 | 11696846 |
| 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 ... | 2007 | 16962245 |
| prevalence of intestinal parasites in dogs from são paulo state, brazil. | the prevalence of gastrointestinal parasites in stray dogs, and dogs with owners was investigated by fecal examinations from 271 dogs employing sedimentation, simple flotation and centrifugation-flotation methods. the centrifugation-flotation method, when compared to simple flotation or sedimentation methods was generally more accurate in the diagnosis of all intestinal parasites, but statistical differences were detected only in relation to giardia spp. and cystoisospora spp. (synonym isospora ... | 2002 | 11750997 |
| isolation of rickettsia rickettsii and rickettsia bellii in cell culture from the tick amblyomma aureolatum in brazil. | brazilian spotted fever (bsf) is a highly lethal disease caused by rickettsia rickettsii. in the present study, rickettsial infection was evaluated in 669 amblyomma aureolatum adult ticks collected from naturally infested dogs in taiaçupeba, a bsf-endemic area in the state of são paulo. ten (1.49%) ticks were infected with rickettsia bellii, and 6 (0.89%) ticks were infected with r. rickettsii. both rickettsia species were isolated and established in vero cell cultures. the rickettsia isolates w ... | 2006 | 17114770 |
| [detection of cyclospora sp oocysts in the feces of stray dogs in greater são paulo (são paulo state, brazil)]. | fecal samples from 140 adult stray dogs of greater são paulo (são paulo state, brazil) were examined for cyclospora sp oocysts. no cases of infection by this coccidium were detected. | 2001 | 11813070 |
| 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 ... | 2007 | 17294930 |
| diverse and atypical genotypes identified in toxoplasma gondii from dogs in são paulo, brazil. | the prevalence of toxoplasma gondii in 118 unwanted dogs from são paulo city, são paulo state, brazil, was determined. antibodies to t. gondii were assayed by the modified agglutination test and found in 42 (35.8%) dogs, with titers of 1:20 in 10, 1:40 in 6, 1:80 in 5, 1:160 in 5, 1:320 in 6, 1:640 in 7, and 1:1,280 or higher in 3. hearts and brains of 36 seropositive dogs were bioassayed in mice, or cats, or both. tissues from 20 seropositive dogs were fed to 20 t. gondii-free cats. feces of ca ... | 2007 | 17436942 |
| canine bartonellosis: serological and molecular prevalence in brazil and evidence of co-infection with bartonella henselae and bartonella vinsonii subsp. berkhoffii. | the purpose of this study was to determine the serological and molecular prevalence of bartonella spp. infection in a sick dog population from brazil. at the são paulo state university veterinary teaching hospital in botucatu, 198 consecutive dogs with clinicopathological abnormalities consistent with tick-borne infections were sampled. antibodies to bartonella henselae and bartonella vinsonii subsp. berkhoffii were detected in 2.0% (4/197) and 1.5% (3/197) of the dogs, respectively. using 16s-2 ... | 2007 | 17583666 |
| the first records of leishmania (leishmania) amazonensis in dogs (canis familiaris) diagnosed clinically as having canine visceral leishmaniasis from araçatuba county, são paulo state, brazil. | two cases of leishmania (leishmania) amazonensis are reported in the domestic dog (canis familiaris). these are the first records of this parasite in this species. the animals lived in the endemic visceral leishmaniasis area of araçatuba, são paulo state, brazil and were initially diagnosed, on clinical grounds, as having visceral leishmaniasis. attempted parasite isolation from inguinal lymph node aspirates was unsuccessful and the indirect immunofluorescent test for visceral leishmaniasis was ... | 2007 | 17720321 |
| common causes of poisoning in dogs and cats in a brazilian veterinary teaching hospital from 1998 to 2000. | a retrospective study at the university veterinary teaching hospital of são paulo city, brazil, describes the pattern of poisoning that occurred from 1998 to 2000. during this period 5,136 animals were sent to the emergency sector, and 250 of these cases were reported as poisonings: 203 dogs (81.2%) and 47 cats (18.8%). the common causes of poisoning in dogs were 28.9% therapeutic products (86.4% non-steroidal anti-inflammatory drugs, 6.8% other drugs, 3.4% antibiotics, 3.4% tranquilizing agents ... | 2002 | 11931501 |
| epidemiological and serological aspects in canine toxoplasmosis in animals with nervous symptoms. | the presence of anti-toxoplasma gondii igm and igg antibodies was studied in samples of blood serum taken from eighty dogs with nervous symptoms at the serviço de enfermidades infecciosas dos animais, faculdade de medicina veterinária e zootecnia, unesp, botucatu, são paulo, brazil. the frequency of igg titers were 16 (13.7%), 64 (13.7%), and 256 (5%), and for igm titers were 16 (7.5%), 64 (15%), and 256 (8.7%). positive reactions were more frequent in the older animals, males, from a rural envi ... | 2002 | 11992143 |
| occurrence of neospora caninum antibodies in sera from dogs of the city of são paulo, brazil. | neospora caninum is an important cause of abortion in dairy cattle worldwide. dogs are important in the epidemiology of this parasite because they are the only hosts known to excrete n. caninum oocysts. in order to understand the prevalence of n. caninum in dogs, sera from 500 owned dogs and from over 600 feral street dogs from the city of são paulo, brazil were assayed for antibodies to n. caninum. sera were examined by the neospora agglutination test (nat) using mouse-derived tachyzoites. anti ... | 2002 | 12031819 |
| daycare centers and schools as sources of exposure to mites, cockroach, and endotoxin in the city of são paulo, brazil. | public places, including schools, have been identified as sources of exposure to allergens derived from mites, cockroach, cat, and dog and to endotoxin. | 2002 | 12373265 |
| canine rabies epidemiology in araçatuba and neighborhood, northwestern são paulo state-brazil. | epidemiological characteristics of canine rabies in the northwest region of são paulo state (araçatuba region), brazil, from 1993 to 1997 are presented. out of 1,984 dogs, a total of 351 (17.7%) were positive for rabies diagnosis; 89% (312/351) of these occurred in urban areas and 85% (266/312) of the urban positive cases were among owned dogs. the mean age of the rabid dogs was 34 months and 61% were male. aggressive behavior was observed in 77% of rabid dogs, followed by lack of coordination a ... | 2004 | 15094898 |
| study of the seasonal dynamics, life cycle, and host specificity of amblyomma aureolatum (acari: ixodidae). | in the first part of this study, monthly infestation by ticks was evaluated on dogs from december 2000 to november 2002 in the rural area of taiaçupeba, são paulo. adults of amblyomma aureolatum (pallas) were found on dogs in all months, with a mean prevalence per month of 46.9 +/- 15.7% (range, 25-80%). the mean tick relative abundance per month was 2.4 +/- 2.7 ticks (range, 0.5-14 ticks), and the mean tick mean intensity per month was 4.7 +/- 4.2 ticks (range, 1.5-23.3 ticks). no a. aureolatum ... | 2004 | 15185932 |
| prevalence of antibodies to spotted fever group rickettsiae in humans and domestic animals in a brazilian spotted fever-endemic area in the state of são paulo, brazil: serologic evidence for infection by rickettsia rickettsii and another spotted fever group rickettsia. | in serum samples obtained from all the healthy humans, horses, dogs, and donkeys present on three farms in the pedreira municipality, an endemic area for brazilian spotted fever, an indirect immunofluorescence assay (ifa) detected antibodies against rickettsia rickettsii in 17 (77.3%) horses, 5 (31.3%) dogs (titers ranging from 64 to 4,048), and none of 4 donkeys or 50 humans. five canine and eight equine sera with high antibody titers to r. rickettsii were also tested by ifa against r. bellii, ... | 2004 | 15238696 |
| attaching and effacing escherichia coli isolated from dogs in brazil: characteristics and serotypic relationship to human enteropathogenic e. coli (epec). | escherichia coli isolates recovered from 182 fecal specimens from dogs up to five months old from the cities of são paulo and campinas, sp, brazil, were examined by polymerase chain reaction (pcr) for several virulence factors and properties. the eae gene was found in 23 isolates of e. coli from 22 dogs, 19 of 146 (13%) from dogs with diarrhea and 3 of 36 (8.3%) from dogs with no diarrhea. two different eae+ isolates were recovered from one dog with diarrhea. isolates from two dogs with diarrhea ... | 2004 | 15262000 |
| tissue stages of hepatozoon canis in naturally infected dogs from sao paulo state, brazil. | a total of 222 dogs were examined by blood smear examination and hepatozoon canis infection was detected in 13 dogs (5.9%). five h. canis-infected dogs were necropsied to observe tissue stages in the organs. fragments of spleen, liver, lungs, heart, kidneys, lymph nodes, bone marrow and skeletal muscles were used to made touch-impression smears. no macroscopic lesions were found in the organs. two dogs had gamonts within polymorphonuclear cells and schizonts in various stages of development with ... | 2004 | 15338284 |
| human toxocariasis: a seroepidemiological survey in schoolchildren of sorocaba, brazil. | a seroepidemiological survey for toxocariasis, among 180 schoolchildren of the public schools of sorocaba city, state of são paulo, brazil, was carried out from august 2000 to july 2001. elisa test was performed using excretory and secretory antigens for the detection of igg anti-toxocara antibodies. information regarding the children was obtained from the parents or legal guardians. the results showed that the mean age was 5.4 +/- 1.4 years, the infection coefficient (ic) was 38.3 and the infec ... | 2004 | 15558160 |
| [infected lutzomyia edwardsi found in the greater sao paulo area]. | | 2005 | 15654471 |
| [american leishmaniasis in the state of são paulo: epidemiological status in 2001-2002]. | | 2003 | 15719771 |
| rickettsial infection in animals and brazilian spotted fever endemicity. | we compared the rickettsial infection status of amblyomma cajennense ticks, humans, dogs, and horses in both brazilian spotted fever (bsf)-endemic and -nonendemic areas in the state of sao paulo, brazil. most of the horses and few dogs from bsf-endemic areas had serologic titers against rickettsia rickettsii antigens. in contrast, no dogs or horses from bsf-nonendemic areas had serologic titers against r. rickettsii antigens, although they were continually exposed to a. cajennense ticks. all hum ... | 2005 | 15752445 |
| antigenic and genetic characterization of the first rabies virus isolated from the bat eumops perotis in brazil. | although the main transmitters of rabies in brazil are dogs and vampire bats, the role of other species such as insectivorous and frugivorous bats deserves special attention, as the rabies virus has been isolated from 36 bat species. this study describes the first isolation of the rabies virus from the insectivorous bat eumops perotis. the infected animal was found in the city of ribeirão preto, são paulo. the virus was identified by immunofluorescence antibody test (fat) in central nervous syst ... | 2008 | 18488088 |
| [contamination of public gardens along seafront of praia grande city, são paulo, brazil, by eggs of ancylostoma and toxocara in dogs feces]. | contamination of the lawns and flower beds along the seafront of praia grande, sp, brazil, by eggs of ancylostoma and toxocara in fecal samples of dogs was evaluated. of the total samples analyzed, 45.9% were contaminated with ancylostoma eggs and 1.2% with toxocara eggs. | 2005 | 15821802 |
| epidemiological aspects of visceral larva migrans in children living at são remo community, são paulo (sp), brazil. | in preparation for a study of risk factors for visceral larva migrans of children living in são remo community, são paulo (sp), brazil, fecal samples were collected from 41 dogs younger than one year of age, 338 serum samples from children ages 1-15 years and 37 soil samples, during march-june 2001. fecal and soil samples were examined for the presence of toxocara spp. eggs and serum samples were evaluated by elisa for antibodies to toxocara canis. of the fecal, serum and soil samples tested, 39 ... | 2005 | 16054301 |
| environmental contamination by toxocara sp. eggs in ribeirão preto, são paulo state, brazil. | toxocariasis is a zoonosis mainly caused by toxocara canis, an intestinal nematode of dogs. man acquires the infection through accidental ingestion of viable eggs, and the toxocariasis clinical manifestations may vary from an asymptomatic infection up to the visceral larva migrans syndrome. seventy eight public squares of ribeirão preto, são paulo, brazil, including bonfim paulista district were visited aiming to evaluate the soil contamination by toxocara eggs. the squares were divided in five ... | 2005 | 16138206 |
| adoption of shelter dogs in a brazilian community: assessing the caretaker profile. | a survey in ibiúna, sao paulo, brazil, of caregivers (owners) who adopted shelter dogs assessed length of ownership, proportion of male and female dogs adopted, and owners' characteristics. it addressed breeding, neutering, vaccination, and veterinary care. it used no testing to provide a good "match" between dog and future owner. of adopted dogs, 58% were male. only 36% of owners were located. mean ownership length was 14.8 months (95% confidence interval = 12.4 to 17.2 months), estimated throu ... | 2005 | 16277594 |
| [laboratory diagnosis of rabies in the west region of são paulo state]. | the pólo da alta sorocabana laboratory, presidente prudente, sp, brazil, and the biological institute in são paulo state, performed an evaluation of rabies diagnosis from 1996 to 2003 in the west region of são paulo state. for the tests, the laboratories used direct immunofluorescence and mice inoculation in 4,950 samples, that were sent for analysis involving dogs, cats, cattle, chiroptera (bats) and other animals. according to the results, the laboratories found 74 positive samples; of which 5 ... | 2006 | 16410925 |
| [prevalence of cryptosporidium sp. in institutionalized dogs in the city of são paulo, brazil]. | dogs play an important role as infection source of human cryptosporidiosis. the objective of the study was to determine the prevalence of cryptosporidium sp. in dogs as well as to compare two techniques of fecal analysis. | 2006 | 16410992 |
| seroprevalence of toxoplasmosis in a low-income community in the são paulo municipality, sp, brazil. | toxoplasmosis is one of the most common zoonoses worldwide. the seroprevalence for t. gondii in human population from brazil might range from 40 to 80%. the aim of this paper was to study the seroprevalence of t. gondii infection in children from age one to 15 living in a low socioeconomic community, named community of jardim são remo in the year of 2002. the community is located in the west area of são paulo municipality, são paulo state, brazil. antibodies to t. gondii were found in 110 (32.4% ... | 2006 | 16847507 |
| prevalence of rickettsia felis in the fleas ctenocephalides felis felis and ctenocephalides canis from two indian villages in sao paulo municipality, brazil. | we evaluated the presence of rickettsia infection among fleas collected on domestic dogs in two guarani indian communities in the suburban area of são paulo municipality, brazil. a total of 114 ctenocephalides felis felis and 47 ctenocephalides canis were collected from 40 dogs. a total of 41 c. felis felis (36.0%) and 9 c. canis (19.1%) fleas yielded expected bands by pcr, which were all shown by dna sequencing to be indentical to the corresponding sequence of a fragment of the rickettsia felis ... | 2006 | 17114741 |
| frequency of soil contamination by toxocara canis eggs in the south region of são paulo municipality (sp, brazil) in a 18 month period. | soil contamination by embryonic eggs of toxocara canis is the main source of human infection by this ascarid larvae resulting, sometimes, in the occurrence of visceral larva migrans syndrome. the objective of the present research is to determine the frequency of t. canis eggs in soil samples monthly collected in nine public places, located at the south region of são paulo municipality in a 18-month period, from february 2004 to july 2005. the soil samples collected were treated with a 30% antifo ... | 2006 | 17221127 |
| tesa-blot for the diagnosis of chagas disease in dogs from co-endemic regions for trypanosoma cruzi, trypanosoma evansi and leishmania chagasi. | we standardized serodiagnosis of dogs infected with trypanosoma cruzi using tesa (trypomastigote excreted-secreted antigen)-blot developed for human chagas disease. tesa-blot showed 100% sensitivity and specificity. in contrast, elisa using tesa (tesa-elisa) or epimastigotes (epi-elisa) as antigen yielded 100% sensitivity but specificity of 94.1% and 49.4%, respectively. when used in field studies in an endemic region for chagas disease, visceral leishmaniasis and trypanosoma evansi (mato grosso ... | 2009 | 19426657 |
| serological survey of leishmania infantum and trypanosoma cruzi in dogs from urban areas of brazil and colombia. | leishmania infantum and trypanosoma cruzi are zoonotic parasites that are endemic throughout many parts of latin america. infected dogs play an important role in transmission of both parasites to humans. a serological survey of leishmania and trypanosoma infection was conducted on 365 dogs from são paulo, brazil and bogatá, colombia, south america. serum samples were examined by the indirect immunofluorescent antibody test (ifat). anti-leishmania igg antibodies were detected in 5 of 107 from bra ... | 2007 | 17825991 |
| molecular identification of giardia duodenalis isolates from humans, dogs, cats and cattle from the state of são paulo, brazil, by sequence analysis of fragments of glutamate dehydrogenase (gdh) coding gene. | the nucleotide sequence of glutamate dehydrogenase (gdh) coding genes were obtained from cysts of giardia duodenalis isolated from feces of naturally infected cats (n=19), dogs (n=27), humans (n=37) and cattle (n=5). the samples were from several municipalities within the state of são paulo, brazil and were collected from january 2004 to august 2006. sequences analysis of the 37 specimens recovered from humans revealed 29 g. duodenalis assemblage aii and 8 g. duodenalis assemblage b. among sampl ... | 2007 | 17900812 |
| population structure and mouse-virulence of toxoplasma gondii in brazil. | recent studies found that isolates of toxoplasma gondii from brazil were biologically and genetically different from those in north america and europe. however, to date only a small number of isolates have been analysed from different animal hosts in brazil. in the present study dna samples of 46 t. gondii isolates from cats in 11 counties in são paulo state, brazil were genetically characterised using 10 pcr restriction fragment length polymorphism markers including sag1, sag2, sag3, btub, gra6 ... | 2008 | 17963770 |
| human and canine leptospirosis: serological data of são paulo city, brazil, 2000 to 2003. | sera from humans and dogs were tested by microscopic agglutination test. icterohaemorrhagiae was the predominant serogroup in both groups, associated with the infestation of rattus norvegicus. | 2005 | 17966484 |
| [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% ... | 2009 | 19772777 |
| molecular identification of cryptosporidium spp. from fecal samples of felines, canines and bovines in the state of são paulo, brazil. | the objective of this study was to obtain information of epidemiological nature through genotypic characterization of cryptosporidium isolates from dogs, cats and bovines from the state of são paulo, brazil. the extraction of dna from oocysts was carried out and polymerase chain reaction was accomplished using specific primers to 18s rrna gene. the amplicons were directed sequenced. seven cat samples, nine dog samples and nine bovine samples were analysed. from the seven cat samples the genotypi ... | 2007 | 17996373 |
| 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 ... | 2007 | 18021025 |
| [estimate of the owned canine and feline populations in urban area in brazil]. | given the importance of assessing owned dog and cat populations to adequate planning and evaluation of rabies control measures in urban areas, it is proposed the use of an estimate of these populations based on human population parameters. | 2004 | 15311298 |
| prevalence of anti-toxoplasma gondii and anti-neospora caninum antibodies in ovine from são paulo state, brazil. | serum samples from 597 sheep from são paulo state, in the southeastern region of brazil, were tested to determine the prevalence of antibodies directed against toxoplasma gondii (> or = 1:64) and neospora caninum (> or = 1:50) using the indirect fluorescent antibody test (ifat). the animals were divided into three groups based on their age: < or = 1 year, 1-4 years, and > or = 4 years. antibodies to t. gondii were observed in 34.7% of the samples with titers ranging from 64 to 16,384 and igg ant ... | 2004 | 15325042 |
| molecular and parasitological survey of hepatozoon canis (apicomplexa: hepatozoidae) in dogs from rural area of sao paulo state, brazil. | hepatozoon canis is a protozoan that infects dogs and is transmitted by the ingestion of the brown dog tick, rhipicephalus sanguineus. two distinct species of hepatozoon genus can infect dogs, h. canis and h. americanum. routine tests to detect the disease are based on direct examination of gametocytes on giemsa-stained blood smears. the objectives of this study were the investigation of infection prevalence in rural area dogs, the comparison of diagnostics by blood smear examination and polymer ... | 2008 | 18188597 |
| serosurvey of rickettsia spp. in dogs and humans from an endemic area for brazilian spotted fever in the state of são paulo, brazil. | the present study provides a rickettsial serosurvey in 25 dogs and 35 humans in an endemic area for brazilian spotted fever in the state of são paulo, where the tick amblyomma aureolatum is the main vector. testing canine and human sera by indirect immunofluorescence against four rickettsia antigens (r. rickettsii, r. parkeri, r. felis and r. bellii) showed that 16 (64%) of canine sera and 1 (2.8%) of human sera reacted to at least one of these rickettsial antigens with titers >0r= 64. seven can ... | 2008 | 18278271 |
| [a descriptive profile of the canine population in araçatuba, são paulo state, brazil, from 1994 to 2004]. | from 1994 to 2004, the canine population in araçatuba, são paulo state, brazil, suffered two major canine zoonoses: rabies and visceral leishmaniasis. changes in the dog population during this period were evaluated using canine census data from 1994 and 2004 and the results of blood samples for diagnosis of canine visceral leishmaniasis in 1999. the ratio of dogs per 10 inhabitants varied from 1.7 in 1994 to 2.0 in 1999 and 1.8 in 2004. the percentage of puppies less than 1 year of age increased ... | 2008 | 18392371 |
| 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 ... | 2008 | 18480237 |
| [occurrence of antibodies anti-neospora caninum in dogs of botucatu range micro region, state of são paulo, brazil]. | neosporosis is a parasitic disease caused by a protozoon neospora caninum, which is recognized as an important cause of bovine abortion and canine neuropathy. considering the isolation of n. caninum and the frequent serology in bovines of our region, the objectives of the present trial were to evaluate the occurrence of antibodies anti-n. caninum in dogs of the botucatu range micro region, in the state of são paulo, and its association with gender, age and origin (urban area--exclusively from th ... | 2008 | 18554432 |
| prevalence of dog intestinal parasites and risk perception of zoonotic infection by dog owners in são paulo state, brazil. | coprological examination was used to estimate the prevalence of gastrointestinal parasites in stray and domiciled dogs from botucatu, são paulo state, brazil. risk factors for dog infection were assessed in relation to demographic, husbandry and management data. the dog owners completed a questionnaire survey on some aspects of dog parasitism such as parasite species, mechanisms of infection, awareness of zoonotic diseases and history of anthelmintic usage. parasites were found in the faeces of ... | 2008 | 18811905 |
| environmental contamination by toxocara spp. eggs in a rural settlement in brazil. | in order to study the environmental contamination by toxocara spp. eggs in a rural community from the pontal do paranapanema region, são paulo state, brazil, soil samples from 31 out of 121 plots were collected in eight different places on each house. the samples were submitted to flotation technique in sodium nitrate (d = 1.20 g/cm3). eggs of toxocara spp. were recovered in nine (29.03%) out of the 31 plots. at least one dog was registered in 27 of the 31 plots examined (87.1%) and at least one ... | 2008 | 18949345 |
| use of geographic information systems in rabies vaccination campaigns. | to develop a method to assist in the design and assessment of animal rabies control campaigns. | 2008 | 19009158 |
| domestic cats constitute a natural reservoir of human enteropathogenic escherichia coli types. | feces of 70 diarrhoeic and 230 non-diarrhoeic domestic cats from sao paulo, brazil were investigated for enteropathogenic (epec), enterohaemorrhagic (ehec) and enterotoxigenic (etec) escherichia coli types. while etec and ehec strains were not found, 15 epec strains were isolated from 14 cats, of which 13 were non-diarrhoeic, and one diarrhoeic. none of 15 epec strains carried the bfpa gene or the epec adherence factor plasmid, indicating atypical epec types. the epec strains were heterogeneous ... | 2009 | 19068073 |
| classic and molecular study of giardia duodenalis in children from a daycare center in the region of presidente prudente, são paulo, brazil. | epidemiological studies on giardiasis by using molecular techniques such as rapd (randomly amplified polymorphic dna) may give information on factors related to the transmission of giardia duodenalis. the aim of this work was to assess the epidemiology of g. duodenalis in 101 children attended at a daycare center in presidente bernardes, sp, brazil. after parasitological examinations in feces samples, 15 children presented cysts of g. duodenalis. their respective parents, brothers and pets, besi ... | 2009 | 19229386 |
| [epidemiological profile of rabies in the northwestern region of são paulo state, from 1993 to 2007]. | the epidemiology of animal rabies in the region of araçatuba, in the northwest of são paulo state, from 1993 to 2007, is described according to the results from diagnoses made at laboratories in the region, using the fluorescent antibody and mouse inoculation tests. out of 10,579 samples analyzed, 4.9% were positive (518/10,579). dogs accounted for 67% of the cases (346/518) and these occurred between 1993 and 1997. among the other positive samples, 16% (84/518) were in cattle and 9.7% (50/518) ... | 2009 | 19287928 |
| toxocariasis/cysticercosis seroprevalence in a long-term rural settlement, são paulo, brazil. | seroprevalence of toxocara and taenia solium and risk factors for infection with these parasites were explored in a long-term rural settlement in são paulo state, brazil. an elisa for the detection of anti-toxocara igg and ige and anti-t. solium cysticerci was standardized using toxocara excretory-secretory antigens (tes) obtained from the cultured second-stage larvae of t. canis and by vesicular fluid antigen from taenia crassiceps cysticerci (vf). for cysticercosis, the reactive elisa samples ... | 2009 | 19366477 |