Objective: The objective of this study was to determine whether CDC recommendations for use of an alcohol-based hand sanitizer to prevent transmission of H1N1 are supported. A secondary objective was to determine whether product format has an impact on the efficacy of alcohol-based hand sanitizers against H1N1.
Methods: Five alcohol-based hand sanitizers were tested: a 62% ethanol gel, 62% ethanol foam, 2 different 70% ethanol gel formulations, and a 62% ethanol wipe formulation. Samples were evaluated using the standard virucidal suspension test method (ASTM E 1052). Each sample was exposed to pandemic strain A/California/04/2009 of Swine-like Influenza A H1N1 (CDC ID # 2009712047) for 15 seconds prior to neutralization and plating. Log reductions were calculated for each product by comparison to the initial virus titer. Results: All alcohol-based products tested achieved complete reduction (>4.25 log10 reduction) of the virus within the 15 second contact time.
Conclusions: · The CDC recommendations for use of alcohol-based hand sanitizers for preventing transmission of the current pandemic strain of H1N1 are supported. Alcohol-based hand sanitizers are considered a reliable intervention for the reduction of H1N1 virus on hands.
· Since all products tested achieved complete reduction of the virus, product format (gel, foam, wipe) did not impact efficacy of alcohol-based hand sanitizers.