The Best Veterinary Breakthroughs of 2007

Americans now spend more than $41 billion a year on their pets, according to Business Week magazine. This year much of that money has been spent on a wide range of exciting breakthroughs in pet care. Marty Becker, veterinarian and author of two new books, "bowWOW!" and "meowWOW" joined "Good Morning America" to talk about 2007's innovations in pet veterinary medicine. Some of the most exciting breakthroughs: Melanoma Vaccine, Dental Disease Vaccine, New Vaccine Delivery System, and New Drug for Weight Loss among others. ABC News