Multifocal Equine Influenza Outbreak with Vaccination Breakdown in Thoroughbred Racehorses.

ABSTRACT: Equine influenza (EI) outbreaks occurred on 19 premises in Ireland during 2014. Disease affected thoroughbred (TB) and non-TB horses/ponies on a variety of premises including four racing yards. Initial clinical signs presented on 16 premises within a two-month period. Extensive field investigations were undertaken, and the diagnostic effectiveness of a TaqMan RT-PCR assay was demonstrated in regularly-vaccinated and sub-clinically-affected horses. Epidemiological data and repeat clinical samples were collected from 305 horses, of which 40% were reported as clinically affected, 39% were identified as confirmed cases and 11% were sub-clinically affected. Multivariable analysis demonstrated a significant association between clinical signs and age, vaccination status and number of vaccine dose

SUBMITTER: Gildea S 

PROVIDER: S-EPMC6027538 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature