Researchers using NHANES data have found that those with vitamin D deficiency are more likely to have (or have had) community-acquired pneumonia.
Community-acquired pneumonia (CAP) is the most common type of pneumonia. It is condition where the lungs become inflamed, specifically the alveoli of the lung. You acquire CAP outside the hospital setting usually by virus or bacterial infection.
CAP is prevalent today with an estimated 4 to 5 million new cases per year in the United States. Direct and indirect health costs of CAP are greater than $17 billion annually.