JCM Figure table search 04
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Murdoch, D. R.
Right arrow Articles by Reller, L. B.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Murdoch, D. R.
Right arrow Articles by Reller, L. B.

 Previous Article  |  Next Article 

Journal of Clinical Microbiology, October 2001, p. 3495-3498, Vol. 39, No. 10
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.10.3495-3498.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Evaluation of a Rapid Immunochromatographic Test for Detection of Streptococcus pneumoniae Antigen in Urine Samples from Adults with Community-Acquired Pneumonia

David R. Murdoch,1,2,* Richard T. R. Laing,3 Graham D. Mills,4 Noel C. Karalus,4 G. Ian Town,3 Stanley Mirrett,2 and L. Barth Reller2

Microbiology Unit, Canterbury Health Laboratories,1 and Christchurch School of Medicine, University of Otago,3 Christchurch, and Waikato Hospital, Hamilton,4 New Zealand, and Clinical Microbiology Laboratory, Duke University Medical Center, Durham, North Carolina 277102

Received 21 March 2001/Returned for modification 9 July 2001/Accepted 26 July 2001

Streptococcus pneumoniae is the most common cause of community-acquired pneumonia but is undoubtedly underdiagnosed. Isolation of S. pneumoniae from blood is specific but lacks sensitivity, while isolation of S. pneumoniae from sputum may represent colonization. We evaluated a new immunochromatographic test (NOW S. pneumoniae urinary antigen test; Binax, Portland, Maine) that is simple to perform and that can detect S. pneumoniae antigen in urine within 15 min. Urine samples from 420 adults with community-acquired pneumonia and 169 control patients who did not have pneumonia were tested. Urine from 315 (75%) of the pneumonia patients and all controls was tested both before and after 25-fold concentration, while the remaining 105 samples were only tested without concentration. S. pneumoniae urinary antigen tests were positive for 120 (29%) patients with pneumonia and for none of the controls. Of the urine samples tested with and without concentration, 96 were positive, of which 6 were positive only after concentration. S. pneumoniae antigen was detected in the urine from 16 of the 20 (80%) patients with blood cultures positive for S. pneumoniae and from 28 of the 54 (52%) patients with sputum cultures positive for S. pneumoniae. The absence of S. pneumoniae antigen in the urine from controls suggests that the specificity is high. Concentration of urine prior to testing resulted in a small increase in yield. The NOW S. pneumoniae urinary antigen test should be a useful adjunct to culture for determining the etiology of community-acquired pneumonia in adults.

* Corresponding author. Mailing address: Microbiology Unit, Canterbury Health Laboratories, P.O. Box 151, Christchurch, New Zealand. Phone: 64 3 364 1530. Fax: 64 3 364 0238. E-mail: david.murdoch{at}cdhb.govt.nz.

Journal of Clinical Microbiology, October 2001, p. 3495-3498, Vol. 39, No. 10
0095-1137/01/$04.00+0   DOI: 10.1128/JCM.39.10.3495-3498.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
Antimicrob. Agents Chemother. Clin. Microbiol. Rev.
Clin. Vaccine Immunol. ALL ASM JOURNALS

Copyright © 2001 by the American Society for Microbiology. All rights reserved.