Significant re‐emergence and recirculation of Schmallenberg virus in previously exposed dairy herds in Ireland in 2016. Issue 5 (1st August 2017)

• Record Type: Journal Article
• Authors: Collins, Á. B.; Barrett, D. J.; Doherty, M. L.; McDonnell, M.; Mee, J. F.
• Is Part Of: Transboundary and emerging diseases. Volume 64:Issue 5(2017)
• Page Start: 1359
• Page End: 1363
• Publication Date: 2017-08-01
• Subjects: arboviruses -- emerging diseases -- veterinary epidemiology; Veterinary medicine -- Periodicals; 636.089
• DOI: 10.1111/tbed.12685
• Languages: English
• ISSNs: 1865-1674

Abstract

Summary: Schmallenberg virus (SBV) circulation was investigated in 25 previously exposed dairy herds in Ireland in 2016. A population of 1, 550 spring‐2014‐born animals, which had been monitored for SBV infection in 2014 and 2015 as part of a previous SBV surveillance study, were resampled for evidence of SBV infection during 2016. A total of 366 blood samples were collected in the 25 study herds (15 samples per herd) between 3 March 2017 and 10 March 2017 (before the 2017 vector‐active season) and analysed for SBV antibodies using a competitive ELISA kit (IDVet). A total of 256 animals tested seropositive, an AP of 69.9% (95% CI: 65.1–74.4) and TP of 77.7% (95% CI: 72.3%–82.8%) when correcting for imperfect test characteristics. These results demonstrate that a new epidemic of SBV circulation occurred in these previously exposed herds in Ireland in 2016.