Mosquitoes play a key role in spreading heartworm disease to dogs. Understanding how this happens is important for prevention ...

By the time they are diagnosed, many dogs already have advanced heartworm disease ... This is because the majority of symptoms don’t appear until the heartworms are fully developed.

Are mosquito bites a problem for dogs and cats? Dr Chester says most pets won't be bothered by the bites, however the risk of heartworm disease ... likely to notice symptoms in dogs, because ...