| clostridium botulinum type f in the soil of argentina. | one strain of clostridium botulinum belonging to type f has been isolated from a soil sample taken in buenos aires province, argentina. comparative studies carried out with strain langeland of c. botulinum type f have shown a few differences between the two strains. | 1968 | 4872996 |
| genetic variation and epidemiology of echinococcus granulosus in argentina. | polymerase chain reaction-ribosomal its-1 dna (rdna) restriction fragment length polymorphism (pcr-rflp) analysis and sequencing of the mitochondrial cytochrome c oxidase subunit 1 (co1) and nadh dehydrogenase 1 (nd1) genes were used to characterize 33 echinococcus granulosus isolates collected from different regions and hosts in argentina, and to determine which genotypes occurred in humans with cystic hydatid disease. the results of the study demonstrated the presence of at least 4 distinct ge ... | 1999 | 10363285 |
| [1st isolation of strains of staphylococcus aureus producing toxic shock syndrome toxin 1 in food handlers in argentina]. | thirty nine milk handlers from a factory of dairy products in the province of buenos aires were examined for their nasal carriage of s. aureus strains capable of producing toxic-shock-syndrome toxin-1 (tsst-1). in addition, chance samples of handled foods, crude milk and milky fermented derivates (mfd) were studied. strain isolation was made on mannitol salt agar and on baird-parker agar. typical colonies were identified by their biochemical properties. cultures that were found to be s. aureus w ... | 1990 | 2102013 |
| genetic and phylogenetic analyses of influenza a h1n1pdm virus in buenos aires, argentina. | an influenza pandemic caused by swine-origin influenza virus a/h1n1 (h1n1pdm) spread worldwide in 2009, with 12,080 confirmed cases and 626 deaths occurring in argentina. a total of 330 h1n1pdm viruses were detected from may to august 2009, and phylogenetic and genetic analyses of 21 complete genome sequences from both mild and fatal cases were achieved with reference to concatenated whole genomes. in addition, the analysis of another 16 hemagglutinin (ha), neuraminidase (na), and matrix (m) gen ... | 2010 | 21047959 |
| phylogenetic analysis of porcine rotavirus in argentina: increasing diversity of g4 strains and evidence of interspecies transmission. | group a rotaviruses are one of the most frequently detected viral agents associated with neonatal diarrhea in piglets. in order to characterize rotavirus (rv) strains circulating in argentinean swine, four porcine production farms located in buenos aires were studied. rv strains genotyped as p[6]g4, p[6]g8 and p[1]g6 were found in piglets under 30 days of age, without diarrhea. phylogenetic and sequence analysis of the vp7 gene from g4 strains available in databases, reveals five porcine new lin ... | 2008 | 17659850 |
| trichinellosis in argentina: an historical review. | in argentina, trichinella infection in pigs is endemic. the first report of human trichinellosis in argentina was from 1898 in buenos aires. the number of human cases increased from 908, between 1971 and 1981, to 6,919, between 1990 and 2002. in pigs slaughtered in official establishments, the prevalence of trichinella infection was 0.46% in 1914 and 0.01--0.03% during the period 1990--2004. t. spiralis is typically found in the domestic cycle that includes pigs, humans and rodents. trichinella ... | 2005 | 16011875 |
| [respiratory distress due to pulmonary hemorrhage in leptospirosis]. | two patients who lived in buenos aires suburbs died from leptospirosis in july 2000 and march 2001. they developed a nonspecific febrile illness followed by hemorrhagic pneumonia and respiratory distress in absence of typical manifestations such as jaundice, nephropathy, thrombocitopenia or hemorrhages in other organs. in the house and surroundings of one patient rodents were captured and three strains of leptospira, serogroup icterohaemorrhagiae were isolated. laboratory guinea pigs were inocul ... | 2002 | 12038034 |
| correlation between antibody levels in toxoplasma gondii infected pigs and pathogenicity of the isolated parasite. | sera and diaphragm muscle tissues were obtained from 109 commercial pigs between september 1991 and may 1992 from the slaughterhouse at la plata, provincia buenos aires, argentina. anti-toxoplasma gondii igg antibody reactivity to t. gondii antigens were assayed using sera by indirect immunofluorescence assay and immunoblotting technique. anti-t. gondii igg titers at serum dilutions of 1:1024 and higher were noted in 11.0% of the tested sera, and at dilutions of 1:16 and lower in 36.7% of the se ... | 1994 | 8171822 |
| [serovars of salmonella enterica subspecies enterica and its antimicrobial resistance in slaughterhouse pigs]. | a study was carried out in order to determine the prevalence of salmonella and its serovars among porcine slaughterhouses, to evaluate the antimicrobial resistance profiles and to know the presence of class 1 integrons as possible reservoir of resistance. from a total of 386 samples from four porcine slaughterhouses of buenos aires and santa fe provinces (argentina), 93 (24.1%) salmonella enterica subspecies enterica strains were identified, 52 (55.9%) from cecal contents and 41 (44.1%) from ile ... | 2009 | 19831314 |
| mycobiota and mycotoxins in fermented feed, wheat grains and corn grains in southeastern buenos aires province, argentina. | wheat (as bran) and corn (as dry grain or fermented feed) are main ingredients of feedstuffs used in local cattle and pig farms in the south of the buenos aires province (argentina). therefore, determining mycobiota and mycotoxins in wheat and corn is of prime importance for developing feed management techniques to optimise animal production and to minimize toxicity. then, a mycological survey was carried out in the southeastern part of the buenos aires province, in order to identify the mycobio ... | 2009 | 19766518 |
| [molecular study of argentine strains of bacillus anthracis]. | bacillus anthracis is one of the most monomorphic bacteria known and epidemiological studies of this microorganism have been hampered by the lack of molecular markers. for the genotyping of fourteen argentine field strains and the vaccine strain steme 34f2 the presence or absence of the virulence plasmids as well as vrra locus containing a variable-number tandem repeat (vntr) and presenting a polymorphism involving five variants, were analyzed. strains were isolated from cows, sheep and pigs dur ... | 2007 | 17702250 |
| [molecular characterization of hepatitis e virus in three acute liver failure cases in children in argentina]. | strains of hepatitis e virus (hev) isolated from argentinian patients with sporadic hepatitis, as well as from swine from argentina, belong to genotype 3. hev genotype 3 variants have been described associated with acute liver failure (alf) in adults from japan and the united kingdom. in argentina, 30% of alf in adults and children are of unknown aetiology. to study if hev could be an aetiological agent associated with alf in children, serum and/or fecal samples fjom 35 children (mean age: 6 yea ... | 2006 | 17407988 |
| identification of the first strain of swine hepatitis e virus in south america and prevalence of anti-hev antibodies in swine in argentina. | in argentina, a country considered non-endemic for hepatitis e virus (hev) infection, serologic evidence of hev infection has been observed in different human population groups. in other countries, a high degree of genetic relatedness has been observed between human and swine hev genotype 3 sequences, suggesting zoonosis as one probable route of infection. this is the first identification of swine hev in south america. hev rna was detected and sequenced in the orf 1 and orf 2 regions from swine ... | 2006 | 17063523 |
| [detection of anti-brucella spp. antibodies in swine by agglutination techniques and indirect elisa in the buenos aires and la pampa provinces, argentina]. | porcine brucellosis is one of the most important zoonoses in this country. currently, there is no control program for porcine brucellosis in argentina and the epidemiological situation is still unknown. the purpose of our study was to detect anti-brucella spp. antibodies in swine in the southwest of the buenos aires province and the east of the la pampa province. blood samples were obtained when animals were slaughtered. the presence of anti-brucella antibodies was studied by the buffered plate ... | 2006 | 17037254 |
| seroprevalence of toxoplasma gondii in sows from slaughterhouses and in pigs from an indoor and an outdoor farm in argentina. | the objective of the present study was to determine the prevalence of toxoplasma gondii antibodies from slaughter sows and from pigs raised at an indoor and an outdoor swine farm. serum samples were obtained from 230 slaughter sows belonging to 83 farms distributed in 5 provinces. blood samples were collected monthly from pigs of different ages from an intensive management indoor farm (farm 1). a cross-sectional study was carried-out from an outdoor farm (farm 2). all sera were tested for t. gon ... | 2004 | 15381296 |
| lethal leptospiral pulmonary hemorrhage: an emerging disease in buenos aires, argentina. | | 2002 | 12194784 |
| epidemiological surveillance and control of trichinellosis in buenos aires province. | the ministries of health and agrarian concerns created in 1994 the "zoonosis commission", a working group of professionals of both institutions, for improving the epidemiological surveillance and control of trichinellosis in buenos aires province. the main purpose was the early detection and control of swine trichinellosis, for reducing human outbreaks, the strategy of action was to decentralize epidemiological surveillance and control activities at municipal level, integrating 101 counties of t ... | 2001 | 11484366 |
| genetic diversity among isolates of trichinella spiralis from the province of buenos aires, argentina. | random amplified polymorphic dnas, (rapds) are used to study the occurrence of trichinella britovi and t5 among domestic animals in the province of buenos aires, argentina and to assess the genetic diversity among isolates of t. spiralisfrom this area in a number of infected hosts. all the local isolates proved to be t. spiralis. six of the eight primers used indicate that the buenos aires isolates are distinct from each other as they produce a considerable number of polymorphic bands. our overa ... | 2000 | 10953229 |
| [serotyping of strains of serpulina hyosenteriae isolated form swine with porcine dysentery symptoms in the province of buenos aires]. | seventeen serpulina hyodysenteriae strains isolated from faeces, rectal swabs and intestinal contents of pigs with swine dysentery, from farms located in buenos aires province were serotyped. samples on selective media (trypticase soy agar added by 5% ovine blood, 400 mg/l spectinomicin, 30 mg/l colistin, 30 mg/l vancomycin) were streaked and incubated under anaerobic atmosphere for 72 h at 42 degrees c. suspected s. hyodysenteriae growth were identified by strong beta-hemolytic zone, without co ... | 1999 | 10932752 |
| ergotism and photosensitization in swine produced by the combined ingestion of claviceps purpurea sclerotia and ammi majus seeds. | poisoning of domestic animals happens frequently in the southeast of buenos aires province (argentina). intoxications are produced mainly by the ingestion of plants and mycotoxins, but animals are rarely affected simultaneously by both types of agents. one herd of pigs suffered simultaneous intoxications by ergot alkaloids from claviceps purpurea sclerotia and furocoumarins from ammi majus seeds. pigs were fed a diet composed of wheat (poor quality) or corn and protein and vitamin supplements. t ... | 1997 | 9087928 |
| [serological, clinical, and epidemiological aspects of an outbreak of trichinosis in azul, province of buenos aires]. | an outbreak of human trichinellosis that took place in southern buenos aires province, an endemic area for this zoonosis, was studied. eighteen individuals were infected by eating swine sausages lacking veterinary control. clinical symptoms, as well as serological studies related to antibody production and cytotoxic capacity of the sera are described. eight interdicted pigs and their products were analysed. in order to determine the transmission network of this zoonosis, wild rats were hunted in ... | 1993 | 8246724 |
| isolation of group a swine rotaviruses displaying atypical electropherotypes. | swine rotaviruses displaying distinctive electropherotypes were isolated from the feces of diarrheic piglets in two swine herds in the province of buenos aires, argentina. in one case all samples isolated showed abnormal electropherotypes. all samples were classified as group a reactive when assayed by an enzyme-linked immunosorbent assay. three samples from this herd were adapted to grow in tissue culture. the electrophoretic pattern of the genomic rna as well as the group a reactivity of one o ... | 1987 | 3034969 |
| [junin virus activity in humans and rodents of non-endemic areas of the province of buenos aires]. | | 1985 | 3020341 |