933Outbreak investigation of canine acquired idiopathic megaoesophagus in Australia, 2017-2018

Abstract

Abstract Background VetCompass Australia collects de-identified data from primary-care, companion animal practices across Australia, providing a large, representative database. VetCompass data were used to investigate an outbreak of megaoesophagus in dogs in Australia in 2017/2018. A specific proprietary dogfood was hypothesized as the cause. Methods The instantaneous daily hazard of megaoesophagus for the period January 2012 to February 2018 was plotted using survival analyses. A case-control study focused on dog demographics and management practices was performed to deter..