Heartworm is a parasitic worm that can infect your pet through a mosquito bite.

Heartworm Lifecycle

What are the signs of heartworm?

Dogs

Early signs could be shortness of breath, loss of stamina, or a nagging dry cough.  As the disease progresses, breathing becomes more difficult.  Your dog could become lethargic and lose weight and appetite.

Cats

Usually, there are few clinical signs in cats. Your cat could develop slight lethargy or a cough, but sudden death are more common if your cat’s heartworm has gone undetected and untreated.

How do I diagnose heartworm in my pet?

A simple blood test can reveal whether or not your pet is infected.  This will detect Microfilaria or Parasite Antigens in the blood.