Do you live in area affected by ticks? Check out this link and it has an interactive map of Lyme Disease and also Heartworm in your area, just put in your zip code and you can see the results of Heartwom, Lyme and a few other disease. If your pet is not on any heartworm preventive please see your vet and test and prevent. Heartworm is a disease that can be prevented and it’s a silence killer in pets. Talk to your vet about Lyme Disease vaccine for your pet.