04/04/2025
It is National Heartworm Awareness Month! Please make sure your pet is on a monthly preventative and tested yearly.
What is Heartworms Disease ?
Heartworm disease is a potentially deadly condition caused by parasitic worms called Dirofilaria immitis. These worms are spread through the bite of an infected mosquito. Once inside the pet’s body, the heartworm larvae mature and travel to the heart, lungs, and associated blood vessels. Over time, they grow into adult worms, sometimes reaching lengths of up to 12 inches.
While dogs are the natural hosts of heartworms, cats can also become infected, although their symptoms and risk factors are different. In dogs, the disease can lead to severe lung disease, heart failure, and organ damage. In cats, heartworm disease is often harder to detect and can cause respiratory issues, vomiting, or even sudden death.
How common is Heartworm Disease?
Heartworm disease has been diagnosed in all 50 states, but it is especially prevalent in warmer climates like South Carolina, Florida, Mississippi, Texas and all of the Southeast portion of the USA where mosquitoes are active for much of the year. With year-round exposure to mosquitoes, pets in our region are at constant risk unless they are on a consistent prevention plan.
According to the American Heartworm Society, more than a million pets in the U.S. are infected with heartworms. The good news? Heartworm disease is almost entirely preventable with proper care and regular veterinary oversight.