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Seta Degann L113 11/13/08 Article Summaries This article discusses the effectiveness of certain concentrations of ethanol in hand sanitizers. It says that the FDA recommends a concentration of 60% to 95% of ethanol or isopropenol in order to effectively kill bacteria. They ran an experiment where they had workers place their hands on agar for 5 s, wash their hands for 15 s with either tap water or rubbed together with 1.5 mL of ethanol, commercial gel with 40% ethanol, commercial gel with 62% ethanol, or commercial 40% gel supplemented to 62% ethanol. The tap water, 40% ethanol, and 40% ethanol gel yielded no significant results while the 62% ethanol and the 62% supplemented ethanol did. They concluded that people should be aware of hand sanitizers, which have only 40% ethanol. Reynolds, Scott A., Foster Levy, and Elaine S. Walker. "Hand Sanitizer Alert." Emerging Infectious Diseases 12.3 (Mar. 2006): 527-529. Academic Search Premier. EBSCO. [Library name], [City], [State abbreviation]. 10 Nov. 2008
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Unformatted text preview: < http://bert.lib.indiana.edu:2048/login? url=http://search.ebscohost.com/login.aspx? direct=true&db=aph&AN=20044978&site=ehost-live >. There are 3 microbial hand-sampling methods: the hand is swabbed, the palm or fingertips are pressed against agar, or the hand is placed in a surgical glove and microbial stripping solution is placed in the glove (this method is the most reliable). There are two ways to categorize microorganisms encountered on the hand surface: transient (picked up temporarily) or resident (they reside permanently on the hand’s surface). A marker bacteria was used: Serratia marcescens because it produces a distinguishable red colony. They compared five different handwash products. The most effective regimens were the alcohol gel wit either the antimicrobial or plain lotion soap. Paulson, Daryl S., Eleanor J. Fendler, Michael J. Dolan, and Ronald A. Williams. "A close look at alcohol gel as an antimicrobial sanitizing agent." AJIC 27 (1999): 332-38....
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