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Inter-laboratory comparison of 2 ELISA kits used for foot-and-mouth disease virus nonstructural protein serology

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Browning, Clare | Di Nardo, Antonello | Henry, Lissie | Pollard, Tim | Hendry, Lynne | Romey, Aurore | Relmy, Anthony | Eble, Phaedra | Brocchi, Emiliana | Grazioli, Santina | King, Donald | Ludi, Anna

Edité par CCSD ; American Association of Veterinary Laboratory Diagnosticians -

International audience. Serologic assays used to detect antibodies to nonstructural proteins (NSPs) of foot-and-mouth disease virus (FMDV) are used for disease surveillance in endemic countries, and are essential to providing evidence for freedom of the disease with or without vaccination and to recover the free status of a country after an outbreak. In a 5-site inter-laboratory study, we compared the performance of 2 commercial NSP ELISA kits (ID Screen FMD NSP ELISA single day [short] and overnight protocols, ID.Vet; PrioCHECK FMDV NS antibody ELISA, Thermo Fisher Scientific). The overall concordance between the PrioCHECK and ID Screen test was 93.8% (95% CI: 92.0–95.2%) and 94.8% (95% CI: 93.1–96.1%) for the overnight and short ID Screen incubation protocols, respectively. Our results indicate that the assays (including the 2 different formats of the ID Screen test) can be used interchangeably in post-outbreak serosurveillance.

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