Recent concerns about Methicillin-resistant Staphylococcus aureus (MRSA) and swine flu have prompted many parents to demand that hand sanitizers be made available in schools to protect their kids. In response, schools began installing alcohol-based hand-sanitizing stations in school cafeterias, classrooms, and even biology labs. But is this approach the best way to prevent the transfer of microbes from one person to another? Should we believe the commercials promising that hand sanitizers kill up to 99.9% on contact? Let’s see what the experts have to say.