Journal Article

An Outbreak of Group A Streptococcal Infection among Health Care Workers

Anthony Kakis, Laurel Gibbs, Jose Eguia, Joe Kimura, Diane Vogelei, Nancy Troup, Dennis Stevens, Edward L. Kaplan, Dwight R. Johnson and John E. Conte

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 35, issue 11, pages 1353-1359
Published in print December 2002 | ISSN: 1058-4838
Published online December 2002 | e-ISSN: 1537-6591 | DOI: http://dx.doi.org/10.1086/344279
An Outbreak of Group A Streptococcal Infection among Health Care Workers

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We describe the nosocomial transmission of group A Streptococcus species (GAS) from a single source patient to 24 health care workers (HCWs). DNA typing revealed that all of the isolates were identical to that of the source patient. The isolates were M type 1, positive for production of nicotine adenine dinucleotidase, and negative for opacity factor, all of which are factors reported to have a higher correlation with invasive disease. The 24 HCWs developed symptoms of pharyngitis ⩽4 days after exposure to the source patient. Nosocomial transmission occurred ⩽25 h after exposure to the source patient, before the institution of outbreak-control measures. A questionnaire was distributed to HCWs to help identify the factors responsible for the high attack rate among those who were exposed. Invasive GAS disease in a nosocomial setting can be highly transmissible. Rapid identification, early treatment, and adherence to infection-control practices may prevent or control outbreaks of infection.

Journal Article.  4128 words.  Illustrated.

Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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