0
ARTICLE |

Enhanced Growth of Legionella pneumophila in the Presence of Selenium

Percy A. Jaquess, MS; David L. Smalley, MS, MT (ASCP); Joseph S. Layne, PhD
JAMA. 1980;244(1):27. doi:10.1001/jama.1980.03310010017007.
Text Size: A A A
Published online

To the Editor.—  Legionella pneumophila has been characterized as a fastidious organism that is unable to grow on many standard media. This organism has been shown to have several growth requirements. Feeley et al1 demonstrated that L-cysteine and ferric pyrophosphate must be used for cultivation of this bacterium in artificial media. Warren and Miller2 reported that L-cysteine was required but could be replaced by L-cystine or reduced glutathione. Their studies also indicated that the ferric iron was needed for maximum growth but that iron was not an essential growth requirement. Recently, Chen and Anderson3 reported that selenium was lower in sera of acutely ill Legionnaires' disease patients than in their convalescent sera. Because selenium has been found to enhance bacterial growth at low concentrations for other bacteria,4 an investigation was undertaken to determine the effect of selenium on the growth of L pneumophila.A specimen of

Topics

Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

Figures

Tables

References

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();