| leptospirosis in the city of salvador, bahia, brazil: a case-control seroepidemiologic study. | from january 1 to december 31 of 1975, all patients admitted to salvador's infectious disease hospital were serologically tested for leptospirosis if their clinical and laboratory findings were compatible with this diagnosis. of the 888 patients tested, 133 were positive. among patients with an initial clinical impression of leptospirosis, the diagnosis was confirmed serologically in 36% and for the 133 leptospirosis patients, only 67 (50.4%) were initially suspected. epidemiological aspects inv ... | 1979 | 536125 |
| predominance of leishmania braziliensis braziliensis in the regions of três braços and corte de pedra, bahia, brazil. | | 1988 | 3232172 |
| [epidemiological characteristics of american cutaneous leishmaniasis in an endemic region of the state of bahia. iii. phlebotomine fauna]. | the phlebotomine fauna is highly varied in três braços, an endemic area of american cutaneous leishmaniasis, situated in the cacao growing region in the southeast of bahia state, brazil. thirty spécies of the lutzomyia genus were identified in 13,535 specimens collected between 1976 and 1984. lutzomyia whitmani was the dominant species accounting for 99% of flies in the peridomicile and 97.5% of those caught in homes. in the forest the predominant species were lu. ayrozai and lu. yuilli. lu. whi ... | 1986 | 3574127 |
| leishmaniasis in brazil. xxii: characterization of leishmania from man, dogs and the sandfly lutzomyia longipalpis (lutz & neiva, 1912) isolated during an outbreak of visceral leishmaniasis in santarém, pará state. | during epidemiological studies on an outbreak of visceral leishmaniasis in santarém, pará state, north brazil, isolates of leishmania from two children, three dogs and six naturally infected specimens of the sandfly lutzomyia longipalpis were compared, biochemically, by starch-gel enzyme electrophoresis. they have proved to be indistinguishable from each other, and from a reference strain of leishmania chagasi cunha & chagas, 1937 from a case of human visceral leishmaniasis from bahia state, nor ... | 1986 | 3726975 |
| leishmaniasis in brazil. xxi. visceral leishmaniasis in the amazon region and further observations on the role of lutzomyia longipalpis (lutz & neiva, 1912) as the vector. | further evidence is presented incriminating the sandfly lutzomyia longipalpis as the vector of leishmania chagasi, the causative agent of american visceral leishmaniasis, in the amazon region of brazil. during an outbreak of the disease in santarém, pará state, this insect was shown to be the only species of sandfly consistently present in and around the patient's homes, where it often occurred in very large numbers. of 491 specimens dissected, 35 (7.14%) proved to be infected, and isolates of l ... | 1985 | 4002291 |
| [findings on kala-azar in jacobina, bahia. v. results of preventive measures]. | | 1970 | 5530160 |
| [epidemiological features of cutaneous leishmaniasis americana in an endemic region of the state of bahia, brazil. i. human leishmaniasis]. | | 1981 | 6456727 |
| leptospirin - an intradermic test for the diagnosis of leptospirosis. | in the state of bahia (brazil) the leptospirin produced in germany for experimental use by the institute for veterinary medicine, federal health office, berlin, was administered to humans and animals in order to diagnose leptospirosis in collaboration with this institute. the results were compared with the microscopic agglutination reaction. the total number of test persons or animals was 268; this group included 81 human patients. 60 heads of cattle, 50 goats, 40 pigs, 25 horses, and 12 dogs. a ... | 1980 | 7434992 |
| [preliminary results of a project about the ecology of phlebotomus vectors of cutaneous leishmaniasis in the state of bahia]. | preliminary data of a project about the ecology of the phlebotominae (sandflies) in a tegumentary leishmaniasis area of coconut plantation in the south of the state of bahia, brazil are presented. there are 60 dwellings far of one another, where existed 31 dogs and 229 inhabitants. among them 41.5% were montenegro positive; 37.5% from these had scars of healed ulcers and 8.8% had active ulcers. 53% of the house had dogs from which 22% were seropositive; from the 7 dogs with ulcers only 3 were se ... | 1996 | 8713612 |
| plague surveillance in brazil: 1983-1992. | plague caused by yersinia pestis, has persisted in brazil in several natural foci spread throughout rural areas in the states of ceara, paraiba, pernambuco, piaui, rio grande do norte, alagoas, bahia, minas gerais and rio de janeiro. nationwide surveillance of plague in brazil based on serological testing started in 1983. we now present an update report of the examinations carried out in our laboratory from 1983 to 1992. the passive hemagglutination test for antibodies against fraction 1a antige ... | 1995 | 8731264 |
| ecotopes, natural infection and trophic resources of triatoma brasiliensis (hemiptera, reduviidae, triatominae). | triatoma brasiliensis is considered as one of the most important chagas disease vectors in the northeastern brazil. this species presents chromatic variations which led to descriptions of subspecies, synonymized by lent and wygodzinsky (1979). in order to broaden bionomic knowledge of these distinct colour patterns of t. brasiliensis, captures were performed at different sites, where the chromatic patterns were described: caicó, rio grande do norte (t. brasiliensis brasiliensis neiva, 1911), it ... | 1998 | 9698835 |
| investigation of an outbreak of endemic coccidioidomycosis in brazil's northeastern state of piauí with a review of the occurrence and distribution of coccidioides immitis in three other brazilian states. | an outbreak of coccidioidomycosis is described that involved three individuals and eight of their dogs, who had engaged in a successful hunt for nine-banded armadillos (dasypus novemcinctus) in the environs of oeiras, a community in brazil's north eastern state of piauí. diagnosis was based on clinical, serological and cultural findings. four of 24 soil samples collected in and around the burrow of an armadillo yielded cultures of coccidioides immitis, thus establishing the endemicity of that mo ... | 1999 | 11220226 |
| [frequency of antibodies anti-ehrlichia canis, borrelia burgdorferi and dirofilaria immitis antigens in dogs from microrregion ilhéus-itabuna, state of bahia, brazil]. | in order to detect the positivity to antigens of dirofilaria immitis, antibodies anti-borrelia burgdorferi and anti-ehrlichia canis, 200 canine blood samples were collected as followed: 100 from the municipality of ilhéus and 100 from itabuna, state of bahia. the kit snap 3dx (idexx laboratories) was used to performe serology. none of the tested animalswere positive for antigens of d. immitis. only two dogs of them were positive for antibodies anti-b. burgdorferi. from all the samples analyzed, ... | 2007 | 18078596 |
| detection of hammondia heydorni and related coccidia (neospora caninum and toxoplasma gondii) in goats slaughtered in bahia, brazil. | hammondia heydorni is a coccidian parasite with an obligatory two host life cycle, with dogs and foxes as definitive hosts, and a number of intermediate hosts, including goats. while infection by this parasite seems to be unassociated with any clinical signs, infection by the closely related parasites neospora caninum and toxoplasma gondii can result in abortion, stillbirths and low yielding in caprine herds. the aim of this work was to investigate the frequency of goats infected with h. heydorn ... | 2009 | 19278786 |
| spatial analysis of migrating apis mellifera colonies in salvador, bahia, brazil. | beekeeping in brazil is growing but also associated with an increase in the number of human and animal accidents involved. in particular, bees of the apis mellifera species (africanized bees) are known for their aggressive behaviour and frequent swarming activity due to their poor adaptation to the human environment. this study analyzed the spatial distribution of occurrences of migratory swarms of a. mellifera and recorded apicultural accidents in the city of salvador, bahia, brazil. the associ ... | 2009 | 19908195 |
| seroprevalence and risk factors for canine visceral leishmaniasis in the endemic area of dias d'avila, state of bahia, brazil. | visceral leishmaniasis (vl) is an important zoonosis in relation to public health systems. dogs are the main domestic reservoir. this study aimed to investigate occurrences of canine vl in dias d'avila, state of bahia, brazil. | 2010 | 20802939 |
| [outbreak of american cutaneous leishmaniasis in canoa, santo amaro, bahia, brazil]. | an outbreak of american cutaneous leishmaniasis (acl) was detected in the village of canoa in 1993. a prospective observational study was outlined to determine the frequency rates and to clinically characterize the disease. a total of 555 people were followed up. there were 29 cases of acl, 11 cases of probably previous acl (scars) and 529 healthy individuals. of these 529 individuals, 65 had a positive montenegro reaction without any present or past evidence of leishmaniasis. the prevalence of ... | 1999 | 10881082 |
| studies on control of visceral leishmaniasis: impact of dog control on canine and human visceral leishmaniasis in jacobina, bahia, brazil. | to assess the effect of removing leishmania-infected dogs on the incidence of visceral leishmaniasis, a controlled intervention study was performed in northeast brazil. the attempted elimination of seropositive dogs resulted in an initial significant decrease in the annual incidence of seroconversion among dogs from 36% to 6% over the first two years. in the following two years, the incidence increased to 11% and 14%, respectively. in a control area in which dogs were surveyed but seropositive d ... | 1998 | 9684628 |
| ecological interactions of visceral leishmaniasis in the state of bahia, brazil. | the laboratory and field observations summarized in this paper on visceral leishmaniasis ecology in the state of bahia, brazil are based on the author's observations over the past 35 years in a number of state's foci, public health records and literature citations. the disease is endemic with epidemic outbreaks occurring every ten years and its geographical distribution is expanding rapidly in the last years. leishmania chagasi is the main ethiologic agent of the visceral leishmaniasis but le. a ... | 1996 | 9283643 |
| a cross-sectional serodiagnostic survey of canine leishmaniasis due to leishmania chagasi. | jequie, a community of about 144,500 inhabitants located in the state of bahia, brazil, is endemic for both visceral and cutaneous leishmaniases. in the present epidemiologic study, the urban and inhabited periurban areas of the town were divided into 140 clusters of 0.25 km2 each. the seroprevalence of canine leishmania antibodies was investigated using an enzyme-linked immunosorbent assay as a screening test since its sensitivity was significantly higher than that of an indirect immunofluoresc ... | 1996 | 8702020 |
| visceral leishmaniasis in a new ecological niche near a major metropolitan area of brazil. | in 1991, a community cross-sectional study was conducted in a village situated near the beach and close to salvador, the capital city of bahia, in brazil, to determine the prevalence of visceral leishmaniasis since 1989. a serological survey was made of human and canine reservoirs and an intradermal skin test for leishmaniasis was used to assess cellular immune responses. nearly 30% of the 243 individuals in the study area had positive skin tests and 14% had positive serology, the latter being c ... | 1995 | 7778139 |
| epidemiological aspects of three trypanosoma cruzi zymodemes in bahia state, brazil. | culture forms of 104 stocks of trypanosoma cruzi isolated in different regions of the state of bahia were compared by electrophoresis of six enzymes. the three distinct combinations of isoenzyme patterns seen were designated zi, z2 and z3. in an area of endemic chagas's disease in eastern bahia, t. cruzi z1 was associated with sylvatic mammals and sylvatic triatomines, whereas t. cruzi z2 was associated with a separate domestic cycleof transmission. t. cruzi z1 was also found in sylvatic triatom ... | 1980 | 6776664 |
| [notes on canine leishmaniasis in the state of bahia]. | | 1970 | 5535148 |
| [findings on kala-azar in jacobina, bahia. ii. canine leishmaniasis]. | | 1969 | 5407816 |
| a focus of mucocutaneous leishmaniasis in três braços, bahia, brazil: characterization and identification of leishmania stocks isolated from man and dogs. | the characterization and identification to species and subspecies of 20 stocks of leishmania isolated from the region of três braços, bahia, brazil, are described: 17 stocks were from patients and three from dogs. the following techniques were used (i) biological (growth in culture, hamster tissues and phlebotomine gut), (ii) biochemical (isoenzyme and kinetoplast dna analysis) and (iii) immunological (using monoclonal antibodies). all except two stocks belong to the l. braziliensis complex. one ... | 1985 | 3909556 |
| [experimental infection of lutzomyia whitmani in dogs infected with leishmania braziliensis braziliensis]. | lutzomyia (n.) whitmani was infected on leishmaniotic lesions of three out of nine dogs infected with leishmania braziliensis braziliensis. the infectivity rates in these sandflies were 8.3% (1/12), 7.1% (1/14) and 1.8% (3/160), respectively. in addition, 180 lu. whitmani fed on non-ulcerated regions of one of the infected dogs and none became infected. we emphasize the vector potentiality of lu. whitmani for l.b. braziliensis in the endemic region of três braços, bahia, brazil. | 1986 | 3796276 |
| environmental contamination by toxocara sp eggs in public areas of salvador, bahia state, brazil. | a survey of parasite eggs and cysts in soil and dog feces collected in public places of 23 boroughs of salvador, a city in the northeast of brazil, was performed. high degree of contamination by toxocara sp eggs was observed in all boroughs studied; other parasites found included: ascaris lumbricoides, hookworms, whipworms and protozoan cysts. parks and public gardens were more contaminated than streets and beaches for all parasites, including toxocara sp. | 1989 | 2487776 |
| immunological inquiry for the epidemiology of leptospirosis in canis familiaris in salvador, bahia, brazil. | a total of 430 dogs were immunologically examined in salvador, bahia, brazil, and 21.6% of them were positive. the animals were selected through an aleatory pattern, according to the division of the city in 18 residential zones a division which had been established by the vaccination campaign against canis hydrophobia. the serotypes icterohemorrhagiae and canicola were the most frequently registered. between the sexes, the male presented the highest index of positivity, though the difference was ... | 1977 | 598976 |
| an outbreak of acute chagas's disease in the são francisco valley region of bahia, brazil: triatomine vectors and animal reservoirs of trypanosoma cruzi. | following reports of an unusually high incidence of acute chagas's disease and the appearance of large numbers of triatoma infestans in the southwestern region of the state of bahia, triatomine bugs (hemiptera: reduviidae) and domestic animals in one of the affected communities were surveyed and examined for infection with trypanosoma cruzi. triatoma infestans was prevalent in houses and was also found in peridomestic habitats. t. sordida and t. pseudomaculata occupied peridomestic and sylvatic ... | 1979 | 120045 |
| first report of trypanosoma cruzi infection in naturally infected dogs from southern bahia, brazil. | in order to verify the trypanosoma cruzi infection in domestic domiciled dogs in a rural endemic area from the south region of the state of bahia, polymerase chain reaction (pcr) were performed using s35 and s36 primers in 272 dogs living in the district of vila operaria, in the municipality of buerarema. all animals were clinically evaluated; 2.5 ml of blood were collected through venipuncture for the performance of molecular tests. none of these animals showed clinical signs of the illness and ... | 2013 | 23459848 |
| Risk factors and clinical disorders of canine ehrlichiosis in the South of Bahia, Brazil. | The aim of this work was to study the clinical disorders and risk factors of canine ehrlichiosis in Ilhéus and Itabuna, Bahia, and compare different diagnostic methods. Blood samples were collected from 200 dogs. Each dog was clinically examined. A questionnaire was used to evaluate the risk factors. The blood samples were analyzed using the Dot-ELISA test; hematometry, platelet counts and searches for morulae on blood smears were performed. Nested PCR was carried out on 50 serologically positiv ... | 2011 | 21961750 |
| [prevalence and risk factors of human infection by toxocara canis in salvador, state of bahia, brazil]. | larva migrans visceral is caused by toxocara sp and has never been studied in bahia. this work investigated the prevalence and risk factors for infection by toxocara canis in individuals from salvador, state of bahia. | 2011 | 21860903 |
| seroprevalence and risk factors for canine toxocariasis by detection of specific igg as a marker of infection in dogs from salvador, brazil. | toxocara canis is a highly prevalent worldwide canine nematode responsible for enzootic and zoonotic infections. it is considered to be one of the main agents of human visceral and ocular larva migrans. false negative diagnosis may occur because adult infected dogs with "dormant" larvae may have negative fecal test results since they usually do not shed parasite eggs in their stools. during pregnancy, the larvae become active and infect the offspring through the placenta. a serological test can ... | 2011 | 21703221 |
| [yersinia pestis infection in the state of bahia: effective control or epidemiological silence?] | introduction: from an epidemiological point of view, the plague is still being considered of great importance, because of its high epidemic potential. despite the absence of cases of human plague in brazil, its etiologic agent, the bacteria yersinia pestis, is still deep rooted in its natural environment. the occurrence of positive serology for plague in domestic carnivores in plague areas in bahia in the past few years implies the need for a more rigorous evaluation in order to verify whether t ... | 2011 | 21468476 |
| prevalence of ehrlichial infection among dogs and ticks in northeastern brazil. | this study investigated the epidemiology of canine ehrlichiosis in northeastern brazil, focusing the identification of the ehrlichia species and vectors involved. samples were collected from 472 domestic dogs residing in the health districts of cajazeiras and itapuã of salvador city. the average prevalence of antibodies reactive to e. canis by immunofluorescent antibody test (ifat) (titer ≥ 1:80) was 35.6% (168/472). blood samples from the e. canis-seropositive animals were tested by nested pcr ... | 2010 | 20624344 |
| treatment of canine visceral leishmaniasis by the vaccine leish-111f+mpl-se. | immunotherapy of canine visceral leishmaniasis (cvl) may provide an alternative to both marginally effective chemotherapy and undesired euthanasia of infected dogs and could have a great impact not only on animal welfare, but also on control of human disease. therefore, we examined the potential immunotherapeutic efficacy of the subunit vaccine leish-111f+mpl-se, which has undergone rigorous preclinical testing and been demonstrated safe in human clinical trials. two separate trials were perform ... | 2010 | 20206667 |
| [zoonotic parasites in dog feces at public squares in the municipality of itabuna, bahia, brazil]. | the contamination of public squares by zoonotic potential parasites was evaluated at the urban areas in the municipality of itabuna brasil. for such, 119 fecal samples of dogs were collected at 10 public squares. after that, these feces samples were transported to the parasitology laboratory in the uesc and they were analyzed by mariano and carvalho's method. of the total analized samples, 56.3% show some parasitic evolutive form. ancylostoma sp. was the most frequently (47.9%), followed by stro ... | 2008 | 19265579 |
| epidemiological and molecular study of ehrlichia canis in dogs in bahia, brazil. | the objective of the present article was an epidemiological and molecular study of ehrlichia canis in dogs of ilhéus and itabuna in bahia, as well as an evaluation of associated risk factors. blood samples were collected from 153 dogs and dna was extracted and analyzed by the nested-polymerase chain reaction, using one pair of primers to detect ehrlichia bacteria and another pair to detect the presence of e. canis. of the 153 animals, 12 (7.8%) were polymerase chain reaction-positive for e. cani ... | 2008 | 18752193 |
| remote sensing and geographic information systems and risk of american visceral leishmaniasis in bahia, brazil. | the spatial distribution of american visceral leishmaniasis (vl) was studied within the context of the environmental characteristics of northwest bahia state in brazil during an epidemic year. geographic information systems (gis) and remote sensing (rs) were used to characterize the landscape epidemiology of vl in order to identify and map high risk areas and endemic zones in a northwestern bahia study area. normalized difference vegetation index (ndvi) was shown to be one of the most important ... | 2005 | 16044686 |
| [evaluation of control measures for visceral leishmaniasis (kala azar) in an endemic area in bahia, brazil (1995-2000)]. | this study evaluated the control program for visceral leishmaniasis in the city of feira de santana, bahia, brazil. information was collected on control measures from 1995 to june 2000, and focused on periodicity, coverage, and incidence trends in the target areas. the dependent variable was the incidence rate for human cases, and independent variables were: percentage of buildings visited in the canine survey and buildings sprayed, number of cycles in the canine survey and spraying, and canine ... | 2004 | 14999334 |
| [leptospiral infection and subclinical presentation among children in salvador, bahia]. | the purposes of this investigation were to identify the frequency and risk factors of leptospiral infection among children aged between 2 and 15 years in salvador, bahia, household contacts of patients (index-cases) hospitalized at couto maia hospital due to leptospira interrogans (elisa igm positive). among 148 household contacts from 25 selected index-cases, clinical and epidemiological data were collected and elisa igm and igg were performed in paired sera (between 20 days) from 73 (49.3%). t ... | 2003 | 12806459 |
| diagnosis and epidemiology of canine leishmaniasis in southeastern bahia, brazil. | leishmaniasis is a disease caused by protozoa of the genus leishmania. two distinct forms are recognized: visceral leishmaniasis (vl) and cutaneous leishmaniasis (cl). in the americas, the causative agent of vl is l. infantum chagasi, whereas l. braziliensis is principally responsible for cl. domestic dogs constitute the main source of vl in urban environments, and have also been implicated in cl epidemiology. we carried out molecular and serological surveys to detect leishmania infection in dog ... | 2016 | 27706707 |