Fast Facts You Need to Know about Chlamydia pneumoniae Infections
1. Most people with a Chlamydia pneumoniae infection have mild illness or do not have symptoms at all.
- Some people can develop serious infections like pneumonia (lung infection), particularly older adults.
- Symptoms of a C. pneumoniae infection usually start gradually. It can take someone 3 to 4 weeks to get sick after being exposed to the bacteria.
- After gradual onset, symptoms due to C. pneumoniae infection may continue for several weeks or months even with appropriate antibiotic treatment.
2. Most people with a C. pneumoniae infection will recover on their own without antibiotics.
- If needed, doctors can use several types of antibiotics to treat C. pneumoniae infections.
- Doctors generally do not prescribe antibiotics to help prevent someone from developing a C. pneumoniae infection if they are exposed to the bacteria.
3. The true number of people affected by C. pneumoniae infection is unknown.
- There is no national reporting or surveillance system for this infection.
- It is likely that many pneumoniae infections are not identified due to it usually only causing mild or no symptoms.
Page last reviewed: November 15, 2021