What are Heartworms?

A heartworm is a parasite that is transmitted through the bite of a mosquito. The parasite then makes it’s home in your pet’s heart or in large blood vessels in the lungs. This causes severe lung damage or heart failure. If gone untreated, heartworms can be fatal. In early stages, some pets may show no symptoms at all. But as the infestation grows, your pet may show symptoms that include coughing, fatigue, loss of appetite, and weight-loss.