The mystery respiratory illness, from which some dogs have died, could be caused by a new type of bacterial infection, according to researchers, per NBC News. According to CBS News, dogs have ...

When you hear that your dog has an infection ... in dogs who inhale the spores from the environment. Infection may remain within the respiratory tract, or it may spread throughout the body ...

While this unknown illness has symptoms similar to kennel cough, COVID-19, and respiratory infections, tests for these illnesses come back negative when dogs diagnosed with this mystery illness ...