Jpn. J. Infect. Dis., 55, 157-159, 2002
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Original Article
Atypical Pathogens in Adult Patients Admitted with Community-Acquired Pneumonia in Korea
Seung-Joon Lee*, Myung-Goo Lee1, Man-Jo Jeon1, Ki-Suck Jung1, Hye-Kyeong Lee2, and Toshio Kishimoto3
Department of Internal Medicine, College of Medicine, Kangwon National University, 192-1 Hyoja 2-Dong, Chunchon 200-701, 1Department of Internal Medicine, College of Medicine, Hallym University, 153 Kyo-Dong, Chunchon, Kangwon-Do 200-704, 2Division of Rickettsial and Zoonotic Diseases, Department of Microbiology, National Institute of Health, 5 Nokbeon-Dong, Eunpyeong-Gu, Seoul 122-701, Korea and 3Department of Virology I, National Institute of Infectious Diseases, Toyama 1-23-1, Shinjuku-ku, Tokyo 162-8640, Japan
(Received July 22, 2002. Accepted October 21, 2002)
SUMMARY: This study examined the prevalence of atypical
pathogens causing community-acquired pneumonia (CAP) in Korea.
We collected sera and clinical data for a period of 1
year for the adult patients consecutively admitted to Chunchon
Sacred Heart Hospital with CAP. The diagnosis was made using serologic
methods to detect antibodies for Mycoplasma pneumoniae,
Chlamydia pneumoniae, Legionella spp., Chlamydia
psittaci, and Coxiella burnetii. Among 81 recruited
patients, C. pneumoniae (n = 10, 12.3%) was
the leading cause of illness, followed by M. pneumoniae
(n = 7, 8.6%). One case of C. burnetii pneumonia
was detected, but there were no cases of Legionella spp.
or C. psittaci. Three cases of C. pneumoniae
pneumonia were co-infected with either M. pneumoniae
or C. burnetii. There was no significant difference
between atypical pneumonia and non-diagnosed pneumonia in terms
of clinical manifestations. In conclusion, of the atypical pathogens
causing CAP, C. pneumoniae and M. pneumoniae
appear to be the important etiologic pathogens in Korea.
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