We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |

Penicillin-Intermediate Pneumococci in a Children's Hospital

Lynne D. Willett, MD; Hugh C. Dillon Jr, MD; Barry M. Gray, MD
Am J Dis Child. 1985;139(10):1054-1057. doi:10.1001/archpedi.1985.02140120100037.
Text Size: A A A
Published online


• During the three-year period from 1981 to 1984, all clinical isolates of Streptococcus pneumoniae were screened for resistance to penicillin in the clinical bacteriology laboratory at The Children's Hospital of Alabama, Birmingham. Twenty-eight of 828 isolates were presumed resistant by disk diffusion testing with 1-μg oxacillin disks (zone diameter, 20 mm). Seventeen of the 28 (61%) were found to be intermediately sensitive to penicillin by a conventional agar dilution method. Penicillin-intermediate strains had a minimal inhibitory concentration of 0.125 to 0.5 mg/L; no penicillin-resistant (minimal inhibitory concentration, >1 mg/L) strains were encountered. The prevalence of penicillin-intermediate strains was thus 17 of 828 isolates, or 2.1%. These strains were also examined for susceptibility to ampicillin, vancomycin, cefotaxime, and chloramphenicol. We present the clinical features of 17 patients with disease due to penicillin-intermediate pneumococci.

(AJDC 1985;139:1054-1057)


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?





Also 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.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
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.


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

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

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