I live on a horse farm in Georgia with my family. My sister has a home here too with her family. One of her dogs got very sick last week and of course they took her to the vet. After several days at the vet Iris passed. The vet sent off samples to a lab and the results just came back. She died of Rocky Mountain Spotted Fever from a tick bite. The tick bites a rat carrying the disease and then bites the dog. All of our dogs are on frontline. Her vet said Frontline is no longer working, and to switch to Advantix. I ordered Advantix yesterday from Jeffers online, no script needed. Just thought I'd put this out there.