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Volume 11, Number 10—October 2005

Research

Isolate Removal Methods and Methicillin-resistant Staphylococcus aureus Surveillance

Fenfang Li*Comments to Author , Tracy L. Ayers†, Sarah Y. Park†, F. DeWolfe Miller*, Ralph MacFadden†, Michele Nakata†, Myra Ching Lee†, and Paul V. Effler†
Author affiliations: *University of Hawaii School of Medicine, Honolulu, Hawaii, USA; †Hawaii Department of Health, Honolulu, Hawaii, USA

Main Article

Table 2

Application of different methods of duplicate isolate removal based on hypothetical data in Table 1*

Method No. isolates No. susceptible (%)†
No removal 21 9 (43)
Cerner, 3 d 19 8 (42)
NCCLS, 3 d 18 7 (39)
Cerner, 10 d 15 6 (40)
NCCLS, 10 d 12 4 (33)
Cerner, 30 d 12 5 (42)
NCCLS, 30 d 9 3 (33)
Cerner, 90 d 10 4 (40)
NCCLS, 90 d 6 2 (33)
Cerner, 365 d 7 3 (43)
NCCLS, 365 d 3 1 (33)
Most resistant 3 0
Most susceptible 3 2 (67)

*d, days; NCCLS, National Committee for Clinical Laboratory Standards.
†Susceptibility percentage is calculated as the proportion of the number of susceptible isolates divided by the number of total isolates tested and eligible for inclusion according to the analysis method used.

Main Article

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