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Nursery Salmonellosis Delayed Recognition Due to Unusually Long Incubation Period

Published online by Cambridge University Press:  02 January 2015

Jerry E. Seals ,
Patricia L. Parrott ,
John E. McGowan Jr.  and
Roger A. Feldman
Jerry E. Seals
Affiliation:
Enteric Diseases Branch, Division of Bacterial Diseases, Center for Infectious Diseases, Centers for Disease Control, Emory University School of Medicine, Atlanta, Georgia
Patricia L. Parrott
Affiliation:
Enteric Diseases Branch, Division of Bacterial Diseases, Center for Infectious Diseases, Centers for Disease Control, Emory University School of Medicine, Atlanta, Georgia
John E. McGowan Jr.
Affiliation:
Enteric Diseases Branch, Division of Bacterial Diseases, Center for Infectious Diseases, Centers for Disease Control, Emory University School of Medicine, Atlanta, Georgia
Roger A. Feldman*
Affiliation:
Enteric Diseases Branch, Division of Bacterial Diseases, Center for Infectious Diseases, Centers for Disease Control, Emory University School of Medicine, Atlanta, Georgia
*
Centers for Disease Control, Division of Bacterial Diseases, Atlanta, GA 30333
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Abstract

A nursery outbreak of diarrheal illness caused by Salmonella nienstedten initially involved seven infants cared for in one nursery; secondary infection subsequently affected one infant cared for in the same nursery as well as four other infants. Recognition of the outbreak was delayed due to an unusually long incubation period. The period from last known exposure to onset of diarrhea ranged from two to 18 days, with a median of ten days. The prolonged incubation period may have resulted from a low inoculum of the organism, from a previously unknown characteristic of Salmonella nienstedten, or may be an age-specific response. Hospital infection control personnel should be aware that nosocomial cases of salmonellosis may have a longer incubation period than has been previously recognized.

Type
Original Articles
Information
Infection Control & Hospital Epidemiology , Volume 4 , Issue 4 , August 1983 , pp. 205 - 208
Copyright
Copyright © The Society for Healthcare Epidemiology of America 1983

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