There is no vaccine to prevent Chlamydia pneumoniae infection, but there are steps you can take to help protect yourself.


Like many respiratory diseases, people are likely to spread C. pneumoniae by coughing and sneezing. To keep from getting or spreading the bacteria, wash your hands often. This is especially important after coughing or sneezing. To practice good hygiene, you should:

  • Cover your mouth and nose with a tissue when you cough or sneeze.
  • Put your used tissue in the waste basket.
  • Cough or sneeze into your upper sleeve or elbow, not your hands, if you don’t have a tissue.
  • Wash your hands often with soap and water for at least 20 seconds.
  • Use an alcohol-based hand rub if soap and water are not available.


C. pneumoniae can sometimes spread to people who have close or lengthy contact with a person with C. pneumoniae infection. However, doctors generally do not prescribe antibiotics to help prevent exposed people from developing a C. pneumoniae infection.

Previous Infections

If you get sick from C. pneumoniae, you may still get sick from it again in the future. Life-long immunity to C. pneumoniae likely does not occur.