Handwashing is the single most effective means of preventing the spread of infection, and more than 20 studies show that, on average, good hand hygiene practices can reduce illness and absence rates and the associated costs by around 40 percent.
U.S. health officials are voicing concern about the emerging H7N9 influenza virus in China as a report in the New England Journal of Medicine (NEJM) described the severe illnesses that killed three of the first patients identified.