Respiratory illness can affect both children and adults. Respiratory illness also has many different types and classifications.
- Adult respiratory distress syndrome, ARDS, wet lung, white lung: acute lung injury characterized by coughing and rales; inflammation of the lungs which become stiff and fibrous and cannot exchange oxygen; occurs among persons exposed to irritants such as corrosive chemical vapors or ammonia or chlorine etc.
- Disease: an impairment of health or a condition of abnormal functioning
- Flu, grippe, influenza: an acute febrile highly contagious viral disease
- Pertussis, whooping cough: a disease of the respiratory mucous membrane
- Cold, common cold: a mild viral infection involving the nose and respiratory passages (but not the lungs); "will they never find a cure for the common cold?"
- Asthma, asthma attack, bronchial asthma: respiratory disorder characterized by wheezing; usually of allergic origin Bronchitis: inflammation of the membranes lining the bronchial tubes
- Emphysema, pulmonary emphysema: an abnormal condition of the lungs marked by decreased respiratory function; associated with smoking or chronic bronchitis or old age
- Pneumonia: respiratory disease characterized by inflammation of the lung parenchyma (excluding the bronchi) with congestion caused by viruses or bacteria or irritants
- Atypical pneumonia, mycoplasmal pneumonia, primary atypical pneumonia: an acute respiratory disease marked by high fever and coughing; caused by mycoplasma; primarily affecting children and young adults
- Interstitial pneumonia: chronic lung disease affecting the interstitial tissue of the lungs
- Pneumoconiosis, pneumonoconiosis: chronic respiratory disease caused by inhaling metallic or mineral particles
- Hyaline membrane disease, respiratory distress syndrome, respiratory distress syndrome of the newborn: an acute lung disease of the newborn (especially the premature newborn); lungs cannot expand because of a wetting agent is lacking; characterized by rapid shallow breathing and cyanosis and the formation of a glassy hyaline membrane over the alveoli
- SARS, severe acute respiratory syndrome: a respiratory disease of unknown etiology that apparently originated in mainland China in 2003; characterized by fever and coughing or difficulty breathing or hypoxia; can be fatal
- Cough, coughing: sudden expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis