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Characteristics That Promote Transmission of Staphylococcus aureus in German Nursing Homes

Published online by Cambridge University Press:  21 June 2016

C. Wendt ,
D. Svoboda ,
C. Schmidt ,
O. Bock-Hensley  and
H. von Baum
C. Wendt*
Affiliation:
Hygiene-Institut, University of Heidelberg, Heidelberg, Germany
D. Svoboda
Affiliation:
Hygiene-Institut, University of Heidelberg, Heidelberg, Germany
C. Schmidt
Affiliation:
Hygiene-Institut, University of Heidelberg, Heidelberg, Germany
O. Bock-Hensley
Affiliation:
Landratsamt Rhein-Neckar-Kreis, Gesundheitsamt, Heidelberg, Germany
H. von Baum
Affiliation:
Sektion Klinikhygiene, University of Ulm, Ulm, Germany
*
Hygiene-Institut, University of Heidelberg, INF 324, 69 120 Heidelberg, Germanyconstanze_wendt@med.uni-heidelberg.de
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Abstract

Objective:

To determine factors that influence transmission of Staphylococcus aureus in nursing homes in the Rhine-Neckar region of southern Germany.

Design:

Ecologie study.

Setting:

Forty-seven nursing homes in the region.

Participants:

Residents of the approached nursing homes who agreed to participate.

Methods:

Personal data and swabs of the nares were collected from participants. Swabs were examined for growth of S. aureus. All S. aureus isolates were typed using pulsed-field gel electrophoresis (PFGE). Transmission rates were calculated by dividing the number of transmissions (ie, cases in which two inhabitants shared the same PFGE type) by the number of S. aureus carriers. Characteristics of the nursing homes were correlated with a home's transmission rate.

Results:

In each nursing home, 12% to 54% of the residents were colonized with S. aureus. The transmission rates for the 47 nursing homes ranged from 0% to 70%. A linear regression model revealed that a stay in the nursing home of longer than 6 months and accommodation in a room with 3 or more beds were positively associated with the transmission rate. Receipt of antibiotics during the 4 weeks preceding the study was negatively associated with transmission.

Conclusions:

Stays beyond 6 months and accommodation in rooms with multiple beds are important for the transmission of S. aureus. One way to reduce transmission would be to design facilities with single and double rooms. However, the social needs of the residents must be evaluated and respected.

Type
Orginal Articles
Information
Infection Control & Hospital Epidemiology , Volume 26 , Issue 10 , October 2005 , pp. 816 - 821
Copyright
Copyright © The Society for Healthcare Epidemiology of America 2005

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