Surveillance and Reporting

There is no national reporting or surveillance system for Chlamydia pneumoniae infections. An estimated 300,000 cases of C. pneumoniae infection occur each year in the United States, but the true size of the health problem is unknown and likely underestimated. ¹

Outbreaks occur mostly in crowded environments like college dormitories and nursing homes. Visit the publications page for articles on some outbreaks that involved C. pneumoniae.

Footnote

¹ Cillóniz C, Ewig S, Polverino E, et al. Microbial aetiology of community-acquired pneumonia and its relation to severity. Thorax. 2011;66(4):340–6.