| immunochemical properties of the antigens of triatoma infestans. | taxonomically related to the cockroach periplaneta americana (pa), triatoma infestans (ti) is an insect that parasitizes two-thirds of argentina and acts as a vector for american trypanosomiasis. the glycoproteins obtained by a sephadex g-150 column fractionation from the whole-body extract prepared with the chitinous structures revealed antigenicity in rabbits, which developed specific igg after 8 weeks of immunization, as detected by several serological techniques. atopic patients living in th ... | 1992 | 1342895 |
| [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 |
| buenos aires, a new leptospira serovar of serogroup djasiman, isolated from an aborted dog fetus in argentina. | this study describes the isolation of a new leptospiral serovar from the djasiman group from an argentinean aborted fetus of a dog. the strain was isolated from a culture of mixed liver and kidney tissue from one aborted dog fetus. bitch's serum showed a titre of 1:800 against the new serovar and 1:400 or less against other serovars tested. microscopic agglutination test (mat) with a panel of 38 rabbit anti-leptospira sera representative for all pathogenic serogroups was performed to establish t ... | 2005 | 15863283 |
| [new findings on junin virus infection in rodents inside and outside the endemic area of hemorrhagic fever in argentina]. | in conjunction with field trials for a vaccine against argentine hemorrhagic fever (ahf), small mammals were trapped during a 28-month period (1 november 1987 to 13 march 1990) in 3 epidemiologically defined areas of the central argentine pampas: northern and central buenos aires provinces were included in the ahf "historic" area, where the disease was common 15-20 years ago, but case rates are currently low; southern santa fe province is the current high-incidence area for ahf; the nonendemic a ... | 1991 | 7476104 |
| natural besnoitia sp. infection in domestic rabbits from argentina. | besnoitia sp. are apicomplexan coccidian parasites affecting several species of mammals and cold-blooded animals in several countries. besnoitia sp. tissue cysts were seen in several tissues of five rabbits from a rabbit breeder in la plata, argentina. bradyzoites released from macroscopic tissue cysts were inoculated onto bovine monocytes, and into interferon gamma gene knockout (ko) mice. besnoitia sp. tachyzoites were seen in the peritoneal exudate of ko mice on day 10 pi and these tachyzoite ... | 2002 | 12163238 |
| [isolation of lymphocytic choriomeningitis virus from human individuals]. | the activity of lymphocytic choriomeningitis virus (lcmv) in argentina has been previously reported on the basis of serological evidence in rodents and humans and the isolation of only one strain of lcmv from a mus domesticus captured in the province of córdoba. the aim of this paper was to register patients with serological diagnosis of lcm, to isolate and to identify human strains of lcmv in argentina. during the last 19 years, 15 cases were diagnosed as lcm by immunoflourescent indirect assay ... | 2001 | 11808424 |
| distribution of is900 restriction fragment length polymorphism types among animal mycobacterium avium subsp. paratuberculosis isolates from argentina and europe. | sixty-one mycobacterium avium subsp. paratuberculosis isolates from cattle and deer from the buenos aires province, an important livestock region in argentina, were typed by restriction fragment length polymorphisms (rflp) analysis based on is900. four different rflp patterns (designated 'a', 'b', 'c' and 'e') were identified in bsteii digests of genomic dna. the most frequently observed type, pattern 'a', was found in 46 isolates (75%). the second, pattern 'e', included 8 isolates (13%), while ... | 1999 | 10596808 |
| isolation of leptospira interrogans from suburban rats in tandil, buenos aires, argentina. | the main objective of this study was to investigate the role of wild rodents as leptospira spp. reservoirs in a suburban area of tandil city, buenos aires province (argentina), where a person had died due to pulmonary leptospirosis. the specific objectives were: to estimate the rodent density near the patient's home, to determine the serological prevalence and isolation of leptospirosis from wild rodents, and to identify the isolated strains. the area examined was a suburban neighbourhood in tan ... | 2010 | 20589335 |
| triatoma infestans in greater buenos aires, argentina. | the health administration agencies of many municipalities in greater buenos aires (gba) receive frequent reports on triatomines in houses. the aim of this work was to identify and describe the dispersal foci of triatoma infestans in an urban neighborhood of gba, and contribute to the knowledge of the epidemiological situation in the region. in june 1998, potentially infested places were entomologically evaluated. t. infestans was only detected in a hen building for egg production, which housed a ... | 2001 | 11391418 |
| aeromonas hydrophila and its relation with drinking water indicators of microbiological quality in argentine. | in argentine, water municipal supplies disinfection is carried out by chlorine. we have isolated aeromonas hydrophila from a chlorinated water supply in buenos aires that fulfilled argentinean microbiological quality standards. it is an aquatic organism that could produce cytotoxins and enterotoxins associated with acute gastroenteritis and wound infections in human and hemorrhagic septicaemia of fish, reptiles and amphibians. the isolated strain produced protein bands at isoelectric point in th ... | 2000 | 11145418 |