How dare you - Bjh - put the lives of dogs in danger with your false statements.
Heartworms DO NOT die on their own. When you find out your dog has HW's it needs to be treated as soon as possible. If not, your pet
WILL die. There are cases of dogs dying
DURING treatment. Not because of the treatment. If you do not catch the heartworms in an early stage and they have had it for awhile, the dogs chances of survival is greatly diminished. Get your facts straight before you go preaching to people who might take your advice. (God forbid) Southeast Texas is the worst place to not give HW Prevenitive. Talk to your vet before listening to BJH.......