Pets and Companion Animals [LL070]; Professions; Practice and Service [CC700]; Information and Documentation [CC300]; Animal Surgery and Non-drug Therapy [LL884]; Diagnosis of Animal Diseases [LL886]; Prion, Viral, Bacterial and Fungal Pathogens of Animals [LL821]; trends; veterinary practice; veterinary profession; veterinarians; veterinary services; telemedicine; machine learning; algorithms; diagnosis; surgery; therapy; pandemics; coronavirus disease 2019; veterinary surgeons; vets; therapeutics