"Respiratory illness" refers to a sickness or disease that affects your breathing or respiratory system, making it harder for you to breathe normally. Full definition
Contact facilities in advance to ask about any recent occurrences of respiratory illnesses in dogs. (lowchensaustralia.com)
She knows that certain diseases will become more prevalent as the climate changes and has already seen an uptick in respiratory illnesses in her line of work. (blogs.sierraclub.org)
Canine influenza, or the dog flu, is a highly contagious acute respiratory illness caused by the canine influenza virus. (wagwalking.com)