How does a cat get heartworm?
answerHeartworm infection takes place when a mosquito carrying microscopic-size heartworm larvae bites a cat. The larvae enter through the bite wound where they develop in the tissues. The immature worms then enter a blood vessel and are carried to the arteries in the lung where they cause an inflammatory reaction. Most worms die at this stage, causing even more inflammation. The worms that progress to the adult stage may live undetected for a couple of years. But, when the adult worms die, the inflammation can be severe enough to cause death. The respiratory signs associated with these reactions are called Heartworm Associated Respiratory Disease (HARD).
