A case-control study to identify risk factors for adult-onset idiopathic megaoesophagus in Australian dogs, 2017-2018.

Our analyses provide evidence that the feeding of Advance Dermocare was responsible for the majority of cases in the outbreak of megaoesophagus in Eastern Australia in 2017-2018. The increase in the incidence rate of megaoesophagus in Australia since 2014-2015 warrants further investigation.