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
[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 ...200717702250
[clinical mycoplasmosis outbreak due to mycoplasma ovis in sheep from shalta, argentina. clinical, microbiological and molecular diagnosis].mycoplasma ovis is an obligatory parasite of the erythrocytes from small ruminants (sheep, goat), wherein it causes chronic or acute anaemia. this agent shows worldwide distribution. however, its dispersion is still unknown in argentina. this work describes an outbreak of mycoplasmosis occurred in january 2007 in a sheep flock from rosario de la frontera, salta, argentina. adult sheep became ill with a mortality rate of 17.8%. all blood smears (n = 11) examined by giemsa stain showed the presenc ...200920085183
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