A rapid and quantitative fluorescent microsphere immunochromatographic strip test for detection of antibodies to porcine reproductive and respiratory syndrome virus
- Author:
Yanqiu WEI
1
;
Baozhi YANG
;
Yunlong LI
;
Yongcheng DUAN
;
Deyu TIAN
;
Baoxiang HE
;
Chuangfu CHEN
;
Wenjun LIU
;
Limin YANG
Author Information
- Publication Type:Rapid Communication
- From:Journal of Veterinary Science 2020;21(4):e68-
- CountryRepublic of Korea
- Abstract: A fluorescent microsphere-based immunochromatographic strip test (FICT) was developed for the rapid, sensitive, and quantitative detection of porcine reproductive and respiratory syndrome virus (PRRSV) antibodies at the pen-side. The assay was based on the formation of a sandwich immune-complex (anti-pig IgG-PRRSV antibodies-NSP7/N), which was validated by a comparison with IDEXX-ELISA using 3325 clinical specimens. The diagnostic specificity, sensitivity, and accuracy of FICT were 97.28, 93.41, and 94.95%, respectively. FICT showed a good correlation with the virus neutralization assay. Overall, a promising pen-side diagnostic tool was developed for the rapid and quantitative detection of PRRSV antibodies within 15 min.
