A comparison of the bacteria found on the hands of
`homemakers' and neonatal intensive care unit nurses
A. E. Aielloa, J. Cimiottib,
P. Della-Lattac and E. L. Larson, , b
a The Joseph L. Mailman School of Public Health, Columbia University,
New York, NY, USA b Columbia University School of Nursing, New York, NY, USA c Columbia Presbyterian Medical Center, New York, NY, USA
Received 27 February 2003; accepted 27 March 2003. ; Available online 9 July
2003.
Abstract
This prevalence study was conducted to compare the counts, types and
antimicrobial resistance profiles of bacterial flora on the hands of
individuals in the community to that of nurses at a nearby university
teaching hospital, with an intense hand hygiene regimen. Hand cultures
were obtained from 204 individuals during a home visit and 119 nurses in
two neonatal intensive care units (NICUs). The mean total log counts of
organisms were 5.73 and 5.24 for the homemakers [defined as the person
(usually the mother) who is the primary person responsible for arranging
childcare, cooking, cleaning etc] and nurse hands, respectively (P<0.0001).
Significantly more homemakers had Acinetobacter lwoffii, Enterobacter
cloacae, Klebsiella pneumoniae, Pseudomonas aeruginosa, P.
fluorescens/putida, and Staphylococcus aureus on their hands
compared with the nurses (all P<0.05). However, significantly more
nurses had Enterococcus faecalis, S. epidermidis, and S. warneri
on their hands (P<0.05). Of note, the hands of nurses harboured
significantly more S. epidermidis strains resistant to
amoxicillin/clavulanate, cefazolin, clindamycin, erythromycin, and
oxacillin and S. warneri resistant to amoxicillin/clavulanate,
cefazolin, clindamycin, and oxacillin (P<0.05). Surprisingly,
significantly more trimethoprim/sulfamethoxazole-resistant S.
epidermidis and ciprofloxacin-resistant S. warneri was
recovered from the hands of homemakers (P<0.05). This study
demonstrates differences in prevalence, bacterial composition and
antimicrobial resistance of hand flora of hospital personnel compared with
homemakers. Moreover, the hands of homemakers may serve as community
reservoirs for antimicrobial resistant strains of clinical importance.
Author Keywords: Antibiotic resistance hospital;
Community hand hygiene
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