In Hong Kong at the end of February a dog tested positive for coronavirus and was isolated until it tested negative although it showed no symptoms. This peaked my interested because I was unaware that the coronavirus could be transmitted to dogs. Indeed, upon further research it appears that dogs cannot be infected.
So why did this dog tested positive? Apparently this was because the dog was exposed to the coronavirus without contracting it itself. This means that the presence of the virus on the dog caused the positive result and that dogs (as of yet) cannot catch the coronavirus.