The Charles T. Campbell Eye Microbiology Lab
UPMC | University of Pittsburgh Medical CenterUniversity of Pittsburgh Schools of the Health Sciences
HomeAbout UsLab Diagnostic TestingAntibiotic SusceptibilityAntimicrobial TherapyCurrent ResearchContact Us


2002 Ocular Microbiology and Immunology Group, Abstract 13

OMIG Main Page | 2002 Abstracts | < Previous | Next>

An Outbreak of Pneumococcal Conjunctivitis on a College Campus
P. Sanchez,1 A Bashir,1 J Turco,1 J Pryor,1 J Schwartzman,1 M Martin,2 C Whitney,2 M Zegans1 1Dartmouth Medical School, 2CDC

Purpose: To describe the microbiology and clinical features of an outbreak of pneumococcal conjunctivitis on a college campus involving over 500 students.

Methods: Data from a consecutive series of conjunctival cultures, a prospective clinical evaluation and a retrospective survey will be presented.

Results: Streptococcus pneumoniae was isolated from more than 40% of all conjunctival specimens submitted for culture by the college health center during the outbreak. Prospective clinical evaluation of 65 students using a simplified screening protocol revealed that observation of a red eye at 2 feet, purulent discharge, complete obscuration of the tarsal blood vessels of the lower eyelid and chemosis were associated with isolation of S.pneumoniae from eye specimens (p<0.05). Of 232 students who responded to a survey after the outbreak, 70% experienced bilateral disease, discomfort was graded as moderate, and more than 90% received topical antibiotics and noted improvement in symptoms within 5 days of beginning treatment. Duration of symptoms ranged from 1 to 60 days; 87% reported that symptoms had resolved at the time of the survey. More than 90% students received an alcohol based portable hand sanitizer, however, most used none or less than 25% of the bottle. No permanent ocular sequelae were observed as a result of this infection. No members of the college health care center staff developed conjunctivitis.

Conclusions: A non-encapsulated strain of S. pneumoniae caused a large and disruptive outbreak of bilateral, purulent conjunctivitis among college students. A simplified clinical screening protocol was effective at identifying cases that were culture positive. Most patients experience resolution of symptoms within 5 days of treatment and no significant ocular sequelae were noted. Normal infection control practices were effective at preventing transmission of this organism to health care staff.

OMIG Main Page | 2002 Abstracts | < Previous | Next>

Top of Page


Web Site Terms of Use | E-mail Terms of Use | Medical Advice Disclaimer
UPMC | Affiliated with the University of Pittsburgh Schools of the Health Sciences | Contact UPMC