Here's a
regional map.
You can click on tabs to see heartworm, lyme. Hover over your state and see #'s for your state, click on your state to find your counties numbers.
One note, I use heartguard for G & B (not the chewable, the other) and the tab I buy is the bigger tab which I cut in half, giving each 1/2. This is being done at my vet's rec as it is slightly cheaper.
Hmmm...now you are worrying me.
Couple of other thoughts: I don't adminsister heartworm or flea/tick meds during the winter.
I called the vet in April (when it began to warm) to double check if I needed to have them tested for heartworm before I began. They checked there records. For some reason, I had the testing done in December (I think I was taking them for their annual shots), and since it had been cold they said go ahead and start up.
Then, yesterday (coincidence?) I realized I had missed their May pill. I called the vet, because I had always been told once a month. They weren't even concerned, since I only missed one month they told me it would be safe to administer now.
Hmm.....