
(HealthDay News) -- Pneumonia is a lung infection that most often spreads through coughing, sneezing or touching.
Most people recover in one to three weeks, but pneumonia can be deadly, especially among people with weaker immune systems.
The American Lung Association explains how pneumonia may be diagnosed:
Sleepy Nurses Vulnerable To Common Cold, Other Infectious Diseases
How To Fight Common Wintertime Respiratory Viruses
Is It a Cold, Flu or COVID? An Expert Helps You Sort It Out