dc.creator | Jaramillo Ortiz, Jose Manuel | |
dc.creator | Montenegro, Valeria Noely | |
dc.creator | De La Fourniere, Sofia Ana María | |
dc.creator | Sarmiento, Nestor Fabian | |
dc.creator | Farber, Marisa Diana | |
dc.creator | Wilkowsky, Silvina Elizabeth | |
dc.date.accessioned | 2018-03-28T15:38:07Z | |
dc.date.accessioned | 2023-03-15T13:53:46Z | |
dc.date.available | 2018-03-28T15:38:07Z | |
dc.date.available | 2023-03-15T13:53:46Z | |
dc.date.created | 2018-03-28T15:38:07Z | |
dc.date.issued | 2018 | |
dc.identifier | 2306-7381 | |
dc.identifier | https://doi.org/10.3390/vetsci5010013 | |
dc.identifier | http://www.mdpi.com/2306-7381/5/1/13 | |
dc.identifier | http://hdl.handle.net/20.500.12123/2148 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/6205434 | |
dc.description.abstract | The current method for Babesia spp. serodiagnosis based on a crude merozoite antigen is a complex and time-consuming procedure. An indirect enzyme-linked immunosorbent assay (iELISA) based on a recombinant multi-antigen of Babesia bovis (rMABbO) was developed for detection of antibodies in bovines suspected of infection with this parasite. The multi-antigen comprises gene fragments of three previously characterized B. bovis antigens: MSA-2c, RAP-1 and the Heat Shock protein 20 that are well-conserved among geographically distant strains. The cutoff value for the new rMABbo-iELISA was determined using 75 known—positive and 300 known—negative bovine sera previously tested for antibodies to B. bovis by the gold-standard ELISA which uses a merozoite lysate. A cutoff value of ≥35% was determined in these samples by receiver operator characteristic (ROC) curve analysis, showing a sensitivity of 95.9% and a specificity of 94.3%. The rMABbo-iELISA was further tested in a blind trial using an additional set of 263 field bovine sera from enzootic and tick-free regions of Argentina. Results showed a good agreement with the gold standard test with a Cohen’s kappa value of 0.76. Finally, the prevalence of bovine babesiosis in different tick enzootic regions of Argentina was analyzed where seropositivity values among 68–80% were obtained. A certain level of cross reaction was observed when samples from B. bigemina infected cattle were analyzed with the new test, which can be attributed to shared epitopes between 2 of the 3 antigens. This new rMABbo-iELISA could be considered a simpler alternative to detect anti Babesia spp. antibodies and appears to be well suited to perform epidemiological surveys at the herd level in regions where ticks are present | |
dc.language | eng | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.source | Veterinary Sciences 5 (1) : 13 (2018) | |
dc.subject | Enfermedades de los Animales | |
dc.subject | Babesiosis | |
dc.subject | Ganado Bovino | |
dc.subject | ELISA | |
dc.subject | ELISA Indirecto | |
dc.subject | Anticuerpos | |
dc.subject | Animal Diseases | |
dc.subject | Cattle | |
dc.subject | Indirect ELISA | |
dc.subject | Antibodies | |
dc.title | Development of an Indirect ELISA Based on a Recombinant Chimeric Protein for the Detection of Antibodies against Bovine Babesiosis | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:eu-repo/semantics/publishedVersion | |