Display Settings:

Format

Send to:

Choose Destination
    Hawaii Med J. 2010 Jan;69(1):8-12.

    Quantitation of Staphylococcus aureus in seawater using CHROMagar SA.

    Source

    Department of Medicine, John A. Burns School of Medicine, University of Hawai'i at Manoa, Honolulu, HI, USA. alantice@idlinks.com

    Abstract

    A microbiological algorithm has been developed to analyze beach water samples for the determination of viable colony forming units (CFU) of Staphylococcus aureus (S. aureus). Membrane filtration enumeration of S. aureus from recreational beach waters using the chromogenic media CHROMagar SA alone yields a positive predictive value (PPV) of 70%. Presumptive CHROMagar SA colonies were confirmed as S. aureus by 24-hour tube coagulase test. Combined, these two tests yield a PPV of 100%. This algorithm enables accurate quantitation of S. aureus in seawater in 72 hours and could support risk-prediction processes for recreational waters. A more rapid protocol, utilizing a 4-hour tube coagulase confirmatory test, enables a 48-hour turnaround time with a modest false negative rate of less than 10%.

    PMID:
    20222490
    [PubMed - indexed for MEDLINE]
    PMCID: PMC3104624
    Free PMC Article

    Images from this publication.See all images (1) Free text

    Figure 1

      Supplemental Content

      Click here to read

      Recent activity

      Your browsing activity is empty.

      Activity recording is turned off.

      Turn recording back on

      See more...
      Write to the Help Desk