Longtime Good Morning America contributor makes decision after 20/20 report critical of veterinarians.
Veterinarians, practice managers, technicians say report misleads pet owners.
Dr. Lindsay Ruland's clients, staff--even her children--experience symptoms she says seem related to canine condition reported in Ohio and Michigan.
Producers, veterinarians work through staggering herd loss and animal stress.
Economic and political challenges abound in efforts to manage horses on public lands.
Investigators continue to seek explanation for canine cases in Ohio, Michigan.
Don Samuelson confesses to making recordings for sexual arousal.
S.H.O.W horse industry organization carries out inspections in conjunction with USDA veterinary medical officers during National Celebration event.
Battle continues to wage on in veterinary community.