Who Is at Risk for Chlamydia pneumoniae Pneumonia?
Published: Feb 03, 2024
Knowing who is most at risk for Chlamydia pneumoniae pneumonia can help in prevention and quick intervention. Find out the risk factors associated with this infection.
Contents
Age and Immunity
C. pneumoniae is more common in older adults, as their immunity may not be as robust. Seroprevalence studies show increasing infection rates with age, making the elderly more susceptible to pneumonia.
Living Conditions and Transmission
People living in crowded environments, such as military barracks or care facilities, face higher infection risks due to close contact. Outbreaks in these settings are frequent, highlighting the importance of preventive strategies.

Existing Health Conditions
Individuals with chronic respiratory diseases or weakened immune systems are at increased risk. These conditions can make it harder for the body to fight off infections like C. pneumoniae.
Frequently Asked Questions
Older adults and those in crowded living conditions are most at risk.
Infection rates increase with age due to declining immunity.
Yes, crowded environments increase transmission risk.
Chronic respiratory diseases increase infection risk.
Risk Factors Recap
Age, living conditions, and health status are key factors in C. pneumoniae infection risk.
References
- Grayston JT, Campbell LA, Kuo CC, et al. A new respiratory tract pathogen: Chlamydia pneumoniae strain TWAR. J Infect Dis 1990; 161:618.
- Coon RG, Balansay MS, Faix DJ, et al. Chlamydophila pneumoniae infection among Basic Underwater Demolition/SEAL (BUD/S) candidates, Coronado, California, July 2008. Mil Med 2011; 176:320.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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