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Applied and Environmental Microbiology, September 2008, p. 5838-5840, Vol. 74, No. 18
0099-2240/08/$08.00+0     doi:10.1128/AEM.00352-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

Bacteriophage P22 and Staphylococcus aureus Attenuation on Nonporous Fomites as Determined by Plate Assay and Quantitative PCR{triangledown}

Yoshifumi Masago,1* Tomoyuki Shibata,2 and Joan B. Rose2,3

Department of Civil and Environmental Engineering, Tohoku University, Sendai, Japan,1 Center for Advancing Microbial Risk Assessment, Michigan State University, East Lansing, Michigan,2 Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan3

Received 11 February 2008/ Accepted 5 July 2008

Decay rates of bacteriophage P22 and Staphylococcus aureus on six types of common household inanimate surfaces were evaluated based on cultivation and quantitative PCR. A much higher level of inactivation was observed using the plate assay, suggesting that detection of the pathogen genome in samples from fomites does not necessarily imply a health risk to humans.

* Corresponding author. Mailing address: Tohoku University, Department of Civil and Environmental Engineering, 6-6-06 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan. Phone: 81 22 795 7483. Fax: 81 22 795 7482. E-mail: masago{at}water.civil.tohoku.ac.jp

{triangledown} Published ahead of print on 11 July 2008.

Applied and Environmental Microbiology, September 2008, p. 5838-5840, Vol. 74, No. 18
0099-2240/08/$08.00+0     doi:10.1128/AEM.00352-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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