Heartworm FAQs

Heartworm disease happens, even in Colorado. While the incidence is lower than in other parts of the country, it is a life-threatening disease easily prevented and difficult to treat. We recommend April through September Heartworm preventative and annual testing. Many heartworm preventatives also provide protection against more common intestinal parasites which can be transmitted to humans and pets. For this reason, we recommend that puppies take heartworm preventative year round.

The American Heartworm Society website contains everything you need to know about heartworm disease.