What are heartworms in dogs? - briefly
Heartworms in dogs are parasitic worms that primarily affect the heart and pulmonary arteries. They are transmitted through the bites of infected mosquitoes and can cause serious health issues if left untreated.
What are heartworms in dogs? - in detail
Heartworms, also known as Dirofilaria immitis, are parasitic worms that can severely impact the health of dogs. The life cycle of these nematodes begins with an infected mosquito transmitting immature heartworm larvae into a dog's bloodstream during a bite. Once inside the host, these larvae develop and migrate through various tissues, eventually reaching the heart and pulmonary arteries where they mature into adult worms. The adult worms can grow up to 12 inches in length and live for several years, causing significant damage to the cardiovascular system.
The primary symptoms of heartworm disease in dogs include coughing, fatigue, decreased appetite, and difficulty breathing. As the infection progresses, it can lead to more severe complications such as heart failure and even death if left untreated. Early detection through blood tests is crucial for effective treatment, which typically involves a series of injections to kill the adult worms and larvae. Preventive measures, including monthly oral medication or topical treatments, are highly recommended to protect dogs from this serious and potentially life-threatening condition.