| [prevalence of staphylococcus aureus isolated from subclinical bovine mastitis in dairies of the city of san luis]. | in order to detect subclinical mastitis by means of california mastitis test and recounting of somatic cells, 163 cows from the dairies of san luis city, argentina, were examined. seventy six individuals (46.6%) exhibited an inflammatory response ranging > or = 2+ grade and a cellular recounting value of > or = 5 x 10(5), data compatible with those of subclinical mastitis. staphylococcus aureus was isolated from 39 (51.3%) cultures as estimated by the sum of the two last values listed in table 1 ... | 1992 | 1298016 |
| treatment of argentine hemorrhagic fever. | argentine hemorrhagic fever (ahf) is a rodent-borne illness caused by the arenavirus junin that is endemic to the humid pampas of argentina. ahf has had significant morbidity since its emergence in the 1950s, with a case-fatality rate of the illness without treatment between 15% and 30%. the use of a live attenuated vaccine has markedly reduced the incidence of ahf. present specific therapy involves the transfusion of immune plasma in defined doses of neutralizing antibodies during the prodromal ... | 2008 | 18054395 |
| 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 |
| yersinia enterocolitica and related species isolated in san luis, argentina, 1989-1993. | | 1995 | 8833797 |
| [junin virus activity in humans and rodents of non-endemic areas of the province of buenos aires]. | | 1985 | 3020341 |
| clinical and epidemiological patterns of argentine haemorrhagic fever. | the epidemiology of argentine haemorrhagic fever (ahf) is closely related to cricetine rodents acting as natural hosts of junin virus. the endemo-epidemic area, which has increased 5 times since the disease was first recognized 15-20 years ago, is located in a densely populated region of argentina. it has been shown that the virus of lcm is active in humans and rodents of the ahf endemic area; this demonstrates the simultaneous presence of two arenaviruses pathogenic for man in a given geographi ... | 1975 | 1085212 |
| [preclinical assay of candid #1 vaccine against argentine hemorrhagic fever made in argentina]. | candid #1 vaccine against argentine hemorrhagic fever produced in usa versus lots of the same vaccine made in argentina were compared in guinea pigs regarding safety, immunogenicity and protective efficacy against a challenge with pathogenic junin virus. lots no exp 3, 7a and 8a of argentine origin as well as lot tsi 5-1-92 from usa were inoculated in guinea pigs of 250-400 g in two consecutive assays. ten animals inoculated with saline performed as normal controls in each experiment. parameters ... | 2005 | 16193711 |
| [clinical, serological and parasitological aspects of an outbreak of human trichinellosis in villa mercedes, san luis, argentina. the acute and chronic phases of the infection]. | clinical and serological features of individuals undergoing the acute (n: 54) and chronic (n: 32) phases of trichinellosis belonging to an outbreak originated by the consumption of pork products of a commercial source, arisen in argentina, are described. epidemiological data, signs, symptoms, and laboratory studies were assessed. parasitological studies were performed in patients and pork products. results showed that: a) the parasite burden of pork products was 200.0 +/- 18.3 larvae/g; b) muscl ... | 2005 | 16193706 |
| [immunization against argentinian hemorrhagic fever using an attenuated strain of junin virus. i. modified strain of junin virus. immunization of guinea pigs]. | | 1969 | 5346952 |