Heartworm disease has become a significant concern in Northern California due to the prevalence of certain mosquito species that transmit the infection. Dogs that do not receive preventive medication-especially those that spend time outdoors-are at higher risk. If detected early, treatment may save your pet, but it can be challenging, risky, and costly.
Prevention
We strongly recommend using Interceptor, Heart Guard Plus, Sentinel, or Revolution for effective heartworm prevention. These medications are safe, easy to administer, and should be given monthly without fail. Additionally, they protect against other intestinal worms like hookworms, whipworms, and roundworms, making them an essential part of your pet’s health regimen.
Testing
Heartworm disease can be difficult to detect since adult worms reside in the heart and their offspring circulate in the bloodstream. We typically cannot identify heartworms until about six months after infection. This means we may not know if puppies already have heartworms when starting preventive medications. Although the risk of infection in puppies is low, we recommend testing around fifteen months of age, coinciding with rabies and distemper booster vaccinations. Afterward, we advise testing every two years to ensure ongoing protection against the possibility of missed doses or medication failures.