| 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 |
| 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 ... | 2004 | 15725535 |
| pilot field trial of the eg95 vaccine against ovine cystic echinococcosis in rio negro, argentina: early impact and preliminary data. | cystic echinococcosis is endemic in the rio negro province of argentina. after 30 years of control using praziquantel in dogs the transmission rate to humans and sheep has decreased significantly, however transmission persists. the objective of the study is to assess the impact of the inclusion of the eg95 vaccine for sheep in the control programme, including analysis of the vaccine's operative feasibility in field conditions. the vaccine was applied in an area comprising four communities of nat ... | 2013 | 23632258 |
| pilot field trial of the eg95 vaccine against ovine cystic echinococcosis in rio negro, argentina: second study of impact. | cystic echinococcosis (ce) is an important zoonotic disease caused by the cestode parasite echinococcus granulosus. it occurs in many parts of the world where pastoral activities predominate, including the rio negro province of argentina. although ce control activities have been undertaken in the western regions of rio negro for more than two decades, the disease continues to remain prevalent in both the human and livestock animal populations. vaccination of animal intermediate hosts of ce with ... | 2015 | 26517877 |
| [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 ... | 2006 | 16871904 |
| ultrasonographic diagnosis and medical treatment of human cystic echinococcosis in asymptomatic school age carriers: 5 years of follow-up. | hydatidosis or cystic echinococcosis (ce) caused by echinococcus granulosus is endemic in the province of río negro, argentina. the objective of this investigation was to evaluate the results of a program carried out in endemic areas of the province of río negro, argentina, in the years 1997-2002. abdominal ultrasonography was used, classifying the cases detected according to who guidelines. a treatment algorithm was defined which included observation, albendazol therapy, pair or surgery, accord ... | 2004 | 15158684 |
| 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 ... | 2002 | 11989533 |
| 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 ... | 2001 | 11423184 |
| rate of infection and of reinfection by echinococcus granulosus in rural dogs of the province of rio negro, argentina. | hydatidosis (cystic echinococcosis) constitutes a serious public health problem in the province of rio negro, argentina. in the present work it was intended to evaluate the prevalence of the canine echinococcosis in rural areas of the province of rio negro and studied the reinfection rate in dogs after treatment with praziquantel during the period 1980-1997. a total of 496 dogs were studied in 18 canine concentrations in order to establish the initial prevalence rate which was 42.3%. from 1980 o ... | 2000 | 10669098 |