| [salmonella in lymph nodes of apparently normal swines slaughtered in the santa cruz slaughterhouse, rio de janeiro city, guanabara]. | | 1974 | 4478929 |
| 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 |
| description of males of parabronema pecariae ivaschkin, 1960 (nematoda, habronematoidea) parasitizing peccaries (mammalia, tayassuidae) in brazil. | nematodes studied herein and identified as parabronema pecariae were collected in 1936 in the states of rio de janeiro and pará and in 1940 in the state of mato grosso do sul, brazil. this species was proposed, with basis on female specimens that had been described earlier as parabronema sp. although the presence of males of p. pecariae was previously reported in brazil, their description was not provided. the present paper deals with the first complete morphometric data on male specimens of p. ... | 2000 | 11080772 |
| factors associated with bovine leptospirosis in rio de janeiro, brazil. | serum samples from 379 adult cows with lowered fertility farmed in the rio de janeiro region of brazil. they were examined for leptospira antibodies. a questionnaire was completed for each herd. antibodies were detected in 46.9% of these cows, mainly to serovar hardjo. main risk factor associated with seropositivity was co-grazing with other species, mainly pigs (or = 3.17; p<0.04). absence of or infrequent veterinary assistance (or = 1.74) has also been suggested to be associated to the overall ... | 2003 | 13129675 |
| [toxoplasma gondii in brains of pigs commercialized at the municipality of campos dos goytacazes in the state of rio de janeiro, brazil]. | brain samples of 12 pigs commercialized for food consumption at the municipality of campos dos goytacazes in the state of rio de janeiro were examined for the presence of toxoplasma gondii. brain sample of each pig was grinded and submitted to peptic digestion. one ml of the homogenate of each sample was inoculated in three albino mice, and this procedure was repeated 24 hours later. inoculated mice were observed during six weeks. dead mice or those that presented clinical signs suggestive of th ... | 2006 | 16647000 |
| diversity of campylobacter jejuni and campylobacter coli genotypes from human and animal sources from rio de janeiro, brazil. | to compare the genotypes of campylobacter jejuni and campylobacter coli isolates of human and animal origin collected in rio de janeiro city, 30 c. jejuni and 35 c. coli isolates from animal sources (n=45) and human patients with gastroenteritis (n=20) were genotyped by pcr-based techniques, namely random amplified polymorphic dna (rapd-pcr) and enterobacterial repetitive intergenic consensus sequence (eric-pcr). rapd-pcr identified 50 types and eric-pcr identified 22 genotypes, among the 65 cam ... | 2010 | 19765787 |
| ochratoxin a in serum of swine from different brazilian states. | the aims of the current study were to monitor the presence of ochratoxin a (ota) in the serum of slaughtered swine and to investigate its distribution in 4 major geographical regions of brazil. a total of 400 samples of serum were collected from 4 major states of brazil (100 samples each). ochratoxin a concentrations were determined by high-performance liquid chromatography. in santa catarina state, 60% of the samples had ota concentrations ranging from 4.01 to 75.4 mg/l. in mato grosso state, 7 ... | 2010 | 20807935 |
| mycological survey and ochratoxin a natural contamination of swine feedstuffs in rio de janeiro state, brazil. | mycotoxin contamination of animal feeds represents a hazard to human and animal health due to potential transmission to meat and milk. barley by-products are alternative feeding supplies for animal production. the aims of this assay were to study the mycobiota of feedstuffs and finished swine feed, to determine the ability of aspergillus and penicillium isolates to produce ochratoxin a (ota) and to evaluate ota occurrence in these substrates. corn, brewers' grains and finished swine feed samples ... | 2009 | 19073207 |
| sequencing of hsp65 gene for identification of mycobacterium species isolated from environmental and clinical sources in rio de janeiro, brazil. | this study evaluated the biodiversity of 28 clinical and 24 environmental mycobacterium isolates from rio de janeiro, brazil, by using hsp65 sequences, with the aim of contributing to a better understanding of the genetic diversity and usefulness of this marker. an extensive phylogenetic analysis was performed. the nucleotide diversity was similar between clinical (0.06508) and environmental (0.06221) isolates. | 2008 | 18768653 |
| [the eradication of african swine fever in brazil, 1978-1984]. | the african swine fever episode in brazil was due to trade and tourism between spain, portugal and brazil, at a time when outbreaks were on the rise in europe. the eradication of the disease, the slaughter of pigs, the elimination of the carcasses and the isolation of affected farms were given wide media coverage, and had a major socio-economic impact. it was forbidden to raise pigs in garbage dumps or to give them feed considered hazardous. analyses performed in brazil as well as national and i ... | 2006 | 16796039 |
| influence of leptospirosis on reproductive performance of sows in brazil. | the purpose of this study was to investigate the association between seropositivity for the most frequent leptospira serovars and reproductive losses in sows in brazil. serum samples from 351 sows from 18 herds (in the state of rio de janeiro, brazil) with low reproductive efficiency were tested (microscopic agglutination) for antibodies against serovars of leptospira. antibodies were detected in serum samples of 66.1% of all sows, most frequently serovar icterohaemorrhagiae (43.1%), followed by ... | 2006 | 16584764 |
| [exploratory analysis of environmental and socioeconomic factors related to snakebite incidence in rio de janeiro from 1990 to 1996]. | this article reports on an exploratory analysis of potential associations between snakebite incidence and environmental and socioeconomic variables in rio de janeiro from 1990 to 1996. specific geographic locations in the state of rio de janeiro, the percentage of working children aged 10 to 14 years, illiteracy, low income, the proportion of households in agricultural areas, the proportion of crops such as beans, coffee, banana, and sugar cane, the proportion of the population working in farmin ... | 2004 | 15300290 |
| the patterns of tungiasis in araruama township, state of rio de janeiro, brazil. | this paper describes patterns of infestation with tunga penetrans (l., 1758) within the poor community of araruama municipality, state of rio de janeiro, brazil, assessed by the number of persons and domestic animals parasitized. the overall prevalence of infestation was 49.2% (211 parasitized hosts) of the 429 examined. humans (p < 0.01) and dogs (p < 0.01) were the most important hosts with 62.6% and 35.6% respectively. dogs were considered as the potential infestation source to humans. consid ... | 2003 | 12700859 |
| feeding patterns of triatoma vitticeps in the state of rio de janeiro, brazil. | feeding patterns of triatomines have contributed to elucidate its biology. triatoma vitticeps, naturally infected with t. cruzi, has been found in domiciles. its behavior and epidemiological patterns were investigated. | 2000 | 10973153 |
| [identification of food sources of anopheles aquasalis (diptera: culicidae) by precipitin test in the state of rio de janeiro, brazil]. | anopheles aquasalis has shown local variations in blood-host preference in brazil: it seems to be anthropophilic in the northeast and zoophilic or opportunistic in the amazon and other regions. a study was carried out in guapimirim county, state of rio de janeiro, from may to november 1992, for the purpose of identifying the blood meal source of this anopheline by capillary tube precipitin test. a total of 1,366 females were captured at natural resting-places, 725 of which were blood-fed. the gu ... | 1996 | 9077010 |
| human leptospirosis in a slum area in the city of rio de janeiro, brazil--a serological and epidemiological study. | a serologic survey was carried out on slum dwellers in the city of rio de janeiro. a total of 259 serum samples from male and female individuals of different age groups were tested for the presence of antileptospire antibodies by microagglutination. prevalence data were analyzed in relation to the major risk factors present at the site, mainly represented by the presence of carrier animals and the occurrence of frequent floods. of the samples tested, 25% reacted with antigens of different serogr ... | 1990 | 2215233 |
| cryptosporidium pig genotype ii diagnosed in pigs from the state of rio de janeiro, brazil. | pigs may represent a source of cryptosporidium sp. infection to humans. the objective of this study was to identify the cryptosporidium species present in pigs from the state of rio de janeiro, brazil, and verify what risks pigs represent in the transmission of human cryptosporidiosis, because there is no such information to date in brazil. ninety-one samples of pig feces were collected from 10 piggeries in 2 municipalities located in the north and northwest regions of the state of rio de janeir ... | 2010 | 21348623 |
| anti-toxoplasma gondii antibodies in cattle and pigs in a highly endemic area for human toxoplasmosis in brazil. | sera from 77 cattle and 61 pigs from herds of campos dos goytacazes and neighborhood, north of rio de janeiro state, brazil, were analyzed for the presence of antibodies anti-toxoplasma gondii via elisa. the seropositivity was confirmed at 49.4% (38 of 77) for cattle and at 11.5% (7 of 61) for pigs. pigs bred under free-ranging systems presented with 20.6% (7 of 34) seropositivity and no pigs bred under indoor systems were positive (n = 27). the seropositivity verified for cattle and pigs conf ... | 2010 | 21348605 |
| an analysis of the 1978 african swine fever outbreak in brazil and its eradication. | the aim of this paper is to evaluate the african swine fever (asf) outbreak that began in 1978 in paracambi municipality, rio de janeiro state, brazil, and the steps taken by the brazilian authorities to eradicate the disease. the presence of asf in the country was confirmed by isolating the virus, and its pathogenicity was certified by the laboratory of the plum island disease center, new york, united states. even before the laboratory results became available, the brazilian agriculture ministr ... | 2010 | 21309454 |
| hepatitis e virus in swine and effluent samples from slaughterhouses in brazil. | hepatitis e is an infectious disease which virus (hev) is highly disseminated in swine herd populations. sporadic acute human hepatitis e cases have been associated to genotype 3 and 4 strains of hev also reported in swine populations of endemic and non-endemic areas. with the aim to evaluate the incidence of animals with current infection of hev, 115 bile samples were collected from three slaughterhouses under inspection by animal sanitary protection agency of rio de janeiro, brazil. in paralle ... | 2010 | 21129863 |
| multi-locus dna sequencing of toxoplasma gondii isolated from brazilian pigs identifies genetically divergent strains. | five toxoplasma gondii isolates (tgpgbr1-5) were isolated from hearts and brains of pigs freshly purchased at the market of campos dos goytacazes, northern rio de janeiro state, brazil. four of the five isolates were highly pathogenic in mice. four genotypes were identified. multi-locus pcr-dna sequencing showed that each strain possessed a unique combination of archetypal and novel alleles not previously described in south america. the data suggest that different strains circulate in pigs desti ... | 2010 | 21051148 |
| genetic diversity of porcine enteric caliciviruses in pigs raised in rio de janeiro state, brazil. | porcine enteric caliciviruses (pec) belong to the genera norovirus and sapovirus within the family caliciviridae. they are enteric pathogens and are considered potential zoonotic agents. in this study, the circulation of pec was evaluated by rt-pcr of stool samples and intestinal contents of pigs raised in rio de janeiro state, brazil. both porcine norovirus (ponov) and porcine sapovirus (posav) were detected. the ponov strains were classified as genogroup ii, genotypes 11, 18 and 19. the posav ... | 2010 | 20526786 |
| temporal distribution of ten calyptrate dipteran species of medicolegal importance in rio de janeiro, brazil. | brazilian studies involving entomological succession patterns in carcasses have been used to describe the necrophagous entomofauna of a determined municipality or region with forensic objectives. following the same objectives, an ecological study with 10 calyptrate dipterans was carried out during the winter of 2007 and the summer of 2008 in the metropolitan region of the municipality of rio de janeiro. the aim of this study was to describe several aspects of the phenology of these species in th ... | 2010 | 20428680 |
| first detection of porcine norovirus gii.18 in latin america. | human (hu) noroviruses (novs) circulate worldwide infecting people of all ages in developing and developed countries. animal novs present some antigenic and genetic relationship to hunovs, although their zoonotic potential has not been established yet. among animal novs, porcine (po) novs are the most genetically related to hunovs. ponovs have only been detected in healthy finisher pigs in a few developed countries. information about them lacks in developing countries. in this study 96 fecal sam ... | 2010 | 20080272 |
| [swine cryptosporidiosis related to production systems in the state of rio de janeiro]. | the purpose of this study was to verify the prevalence of cryptosporidiosis in swine farms of familiar and technical production systems, located in the north and northwest regions of the state of rio de janeiro. a total of 103 fecal samples of different swines were collected, proceeding from 10 farms, of which five were familiar and five technical. for the diagnosis, the modified concentration by sedimentation technique with posterior staining by modified ziehl-neelsen was used. forty and 29.3% ... | 2008 | 20059853 |
| new records of calyptrate dipterans (fanniidae, muscidae and sarcophagidae) associated with the decomposition of domestic pigs in brazil. | the calyptrate dipterans are the most important decomposers of human cadavers. knowledge of their species and distribution are of great importance to forensic entomology, especially because of the enormous diversity in brazil. carcasses of domestic pigs (sus scrofa, l) were the experimental models used to attract calyptrates of forensic interest during the winters of 2006 and 2007 and the summers of 2006 and 2008. a total of 24,423 specimens from 44 species were collected (19 muscidae, 2 fanniid ... | 2009 | 19876568 |