People at Risk

Elementary children sitting in a circle.

Mycoplasma pneumoniae outbreaks occur mostly in crowded settings.

Mycoplasma pneumoniae infections are most common in young adults and school-aged children, but can affect anyone. People living and working in crowded settings are at increased risk. These settings include:

  • Schools
  • College residence halls
  • Military training facilities
  • Long-term care facilities
  • Hospitals

Other people at increased risk for serious infections include those:

  • Recovering from a respiratory illness
  • With a weakened immune system