A microsphere-based immunoassay for rapid and sensitive detection of bovine viral diarrhoea virus antibodies

Autor: Jonas Blomberg, Ronnie Eriksson, Sándor Belák, István Kiss, Ann Nordengrahn, Malik Merza, Lihong Liu, Hongyan Xia
Rok vydání: 2010
Předmět:
Zdroj: Journal of Virological Methods
ISSN: 0166-0934
DOI: 10.1016/j.jviromet.2010.04.009
Popis: This study describes a novel blocking microsphere-based immunoassay for highly sensitive and specific detection of antibodies against bovine viral diarrhoea virus (BVDV). The intra- and inter-assay variability are 4.9% and less than 7%, respectively, and variability of bead conjugations is less than 6.6%. The diagnostic performance of the assay was evaluated by testing a total of 509 serum samples. Based on a negative/positive cut-off value of 30.3%, the assay has a sensitivity of 99.4% and a specificity of 98.3% relative to ELISA. The new microsphere immunoassay provides an alternative to conventional ELISA systems and can be used for high-throughput screening in the BVD control programmes.
Databáze: OpenAIRE