Publications

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epidemiology of hydatid disease in southern argentina. comparison of morbidity indices, evaluation of immunodiagnostic tests, and factors affecting transmission in southern rio negro province. 19734729743
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 ...199910363285
ovine echinococcus granulosus transmission dynamics in the province of rio negro, argentina, 1980-1999.in this work, the impact of a hydatidosis control programme for dogs on the intermediate ovine host was specifically analysed to determine the levels of prevalence achieved and the dynamics of parasite transmission, as well as to evaluate the quality of diagnostic systems in slaughterhouses. a field study was conducted in four slaughterhouses (valcheta, los menucos, jacobacci, bariloche) that process animals coming from all the departments within the work area. the control programme for dogs ent ...200111423184
diagnosis of cystic echinococcosis on sheep farms in the south of argentina: areas with a control program.in 2000 guarnera et al. proposed using elisa in canine faeces collected from the ground to detect dogs infected with echinococcus granulosus, thus determining sheep farms with active transmission. the objective was to evaluate the prevalence of e. granulosus infection in sheep farms of the patagonia. sheep farms were randomly selected in the provinces of río negro, chubut, neuquén, santa cruz and tierra del fuego (areas with control programs) and la pampa (comparison area). from one to three sam ...200415725535
epidemiology of toxocariasis in a steppe environment: the patagonia study.to investigate the epidemiology of human toxocariasis in a steppe environment, a field survey was carried out in three provinces of argentina's patagonia (chubut, neuquen, and rio negro) among 114 rural subjects residing in estancias (cattle- or sheep-breeding ranches). overall seroprevalence was 31.6%, and the contamination rate of soil by toxocara eggs was 35.1%. bivariate and multivariate analyses were performed for various exposure variables and also for the de martonne aridity-humidity inde ...200717556626
[epidemiological surveillance of cystic echinococcosis in dogs, sheep farms and humans in the rio negro province].the surveillance of infection for echinococcus granulosus in the province of rio negro during 1980-2002 included serological and ultrasonographic screening in humans and arecoline test in dogs. in lieu of the limitations of the arecoline test the proposal was to supplant that test for the copro elisa-copro/western blot complex applied to feces collected from the environment. the objective was to compare the pros and cons of the two tests and to evaluate the human and the canine infection prevale ...200616871904
[incidence of streptococcus pyogenes pharyngitis in bariloche, argentina].the incidence and seasonality of pharyngitis by s. pyogenes in bariloche, a city where long periods of low temperatures result in extended indoor activities were studied. a total of 5276 throat swab specimens collected during 2000-2003 in the clinical microbiology laboratories of the three main medical institutions of the city, were analyzed. samples were cultured on blood-agar media containing 5% defibrinated sheep blood, and incubated for 24-48 h at 35 degrees c. strains were identified using ...200516178462
a case-control study of the risk factors for cystic echinococcosis among the children of rio negro province, argentina.in 1984 the prevalence of cystic echinococcosis (ce) in rio negro province in central argentina reached alarming levels, with almost 6% of children aged 7-13 years infected with the causative agent, echinococcus granulosus. although the control activities developed between 1980-2000 have now lowered the prevalence of infection in this age-group to 1.1%, transmission of e. granulosus has clearly not ceased. the aim of the present study was to identify possible flaws in the control programme and t ...200211989533
epidemiological surveillance of human hydatidosis by means of ultrasonography: its contribution to the evaluation of control programs.epidemiological surveillance for hydatidosis is based on initial determination and follow-up of the infestation rate in man, sheep and dogs. the use of ultrasonography (us) as a screening method has demonstrated its usefulness in detecting asymptomatic human carriers of abdominal hydatidosis. to evaluate the contribution of us to epidemiological surveillance within the framework of disease control programs, we performed 719 us studies in school children from 7 to 13 years of age, in rural areas ...200111412805
control program of hydatid disease in the province of río negro argentina. 1980-1997. 200011338973
[diet as a risk factor for coronary atherosclerosis in a rural area of argentinian patagonia. comparison with the urban zone of viedma].to determine risk factors, a clinical, cardiologic, biochemical and nutritional study was carried out. a sample of the rural population of comi-co (n = 92), which included descendants of mapuche indians, was compared with a sample of the urban population of viedma (n = 94). sheep, goat and horse meat from the rural district was analyzed. in horse meat, intramuscular fat was 1.16 g%, with 34.5% of polyunsaturated fatty acids including linolenic (18:3 w3) 11.9%, linoleic (18:2 w6) 21.0%. the diet ...19938246733
[hydatidosis control in the province of río negro, argentina: evaluation of the veterinary health care activities. 1].hydatidosis constitutes a serious public health problem in the province of rio negro, argentine. this situation has promoted the implementation of a control programme, carried out in 1979. the accumulated experience of 13 years works is presented in this study.19947716409
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