Infectious canine hepatitis (IHC) caused by canine adenovirus 1 (CAdV-1) is a classic disease in dogs causing severe illness in non-vaccinated dogs. For this reason, CAdV-1 is incorporated in the standard core vaccination. Because of widespread vaccination, this disease is only rarely seen by the veterinary practitioner. However, ICH does occur in Belgium, especially when vaccination is not adequate. In this brief review, the authors intend to refresh the knowledge of ICH illustrated by three recent cases.