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Diagnosing infection with small ruminant lentiviruses of genotypes A and B by combining synthetic peptides in ELISA

AuthorsSanjosé, Leticia ; Pinczowski, Pedro; Crespo, Helena ; Pérez, Marta M.; Glaria, Idoia ; Gimeno, Marina; Andrés, Damián F. de ; Amorena Zabalza, Beatriz ; Luján, Lluís; Reina, Ramsés
KeywordsSmall ruminant lentivirus
Peptide ELISA
Issue DateApr-2015
CitationVeterinary Journal 204(1): 88- 93 (2015)
AbstractThe major challenges in diagnosing small ruminant lentivirus (SRLV) infection include early detection and genotyping of strains of epidemiological interest. A longitudinal study was carried out in Rasa Aragonesa sheep experimentally infected with viral strains of genotypes A or B from Spanish neurological and arthritic SRLV outbreaks, respectively. Sera were tested with two commercial ELISAs, three based on specific peptides and a novel combined peptide ELISA. Three different PCR assays were used to further assess infection status.The kinetics of anti-viral antibody responses were variable, with early diagnosis dependent on the type of ELISA used. Peptide epitopes of SRLV genotypes A and B combined in the same ELISA well enhanced the overall detection rate, whereas single peptides were useful for genotyping the infecting strain (A vs. B). The results of the study suggest that a combined peptide ELISA can be used for serological diagnosis of SRLV infection, with single peptide ELISAs useful for subsequent serotyping.
Publisher version (URL)http://dx.doi.org/10.1016/j.tvjl.2015.01.012
Identifierse-issn: 1532-2971
issn: 1090-0233
Appears in Collections:(IDAB) Artículos
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