Question: what are the signs and symptoms of a lung infection?
Answer: Cough that produces thick mucus. Coughing helps to rid your body of the mucus produced from inflammation of the airways and lungs. ... 
Stabbing chest pains. ... 
Fever. ... 
Body aches. ... 
Runny nose. ... 
Shortness of breath. ... 
Fatigue. ... 
Wheezing.