World Pneumonia Day. 12 November

World Pneumonia Day. 12 November is set aside as an annual reminder that pneumonia can strike anywhere and anytime, and is a serious, potentially life-threatening lung infection. Pneumonia is primarily caused by viruses, bacteria or fungi that are transmitted from one person to another. The most common type of bacterial pneumonia is pneumococcal pneumonia. Older adults and those with weakened immune systems or certain chronic health conditions—like asthma or chronic obstructive pulmonary disease (COPD)—are especially at risk for infectious disease. Every Breath Counts.