Stages of Heartworm Infection in Dogs
Stages of Heartworm Infection in Dogs
Stage | Signs |
|---|---|
I | Minimal, if any, signs and none evident to owner |
II | Mild to moderate signs of HWD, most often including cough |
III | Severe signs of HWD, including respiratory signs, weight loss, exercise intolerance, and even heart failure |
IV | Caval syndrome |