Mycoplasma pneumoniae is an “atypical” bacterium that causes respiratory infections across all ages and is a leading cause of community-acquired pneumonia in school-aged children and young adults. It infects about 1% of the U.S. population each year (millions of cases); while most are mild, 5–10% of infected patients develop pneumonia. Testing for M. pneumoniae guides therapy and helps explain outbreaks of “walking pneumonia.” (Yun 2024, CDC 2024).
Yun K. W. (2024). Community-acquired pneumonia in children: updated perspectives on its etiology, diagnosis, and treatment. Clinical and experimental pediatrics, 67(2), 80–89.
CDC. (2024). Mycoplasma pneumoniae infection surveillance and trends. Retrieved November 14, 2024,