Heartworm infestation has become common in the world. These heart-dwelling worms are spread through mosquitoes. Over time they can cause heart failure and death. The good news is that there is a monthly preventative to keep your dog healthy! Here are some other important facts about heartworms in dogs.

1. Heartworms are not contagious

Heartworms are transmitted through mosquitoes. Even if a mosquito bit an infected dog right next to yours then bit your dog, your dog wouldn’t get infected because the parasite has to incubate in the mosquito for days before it becomes infective.