Q: My vet recommended heartworm testing and prevention chews for my pets, but I’m worried about side effects and cost. Are these really needed? A: For most dogs, the answer is yes. Heartworm disease ...

Let’s be honest. When a dog tests positive for heartworm, there’s a particular kind of quiet that falls over the exam room. It’s not a simple diagnosis. It’s the start of a long, difficult, and ...