Do you know what a dog coughing sounds like? It's the first symptom in most dogs who've contracted the mystery illness spreading across the U.S. And veterinarians are warning that a dog cough can be ...

Coughing can be a symptom of various health conditions, including pneumonia. Pneumonia is a lung infection and/or inflammation of the air sacs of one or both lungs. Bacteria, viruses, and fungi can ...