The findings "have implications for guidelines and recommendations for mask use in the community setting," the authors wrote. Mask use during this study was proven to have a protective effect even when worn moderately during the day. Additionally, the use of face masks and hand hygiene may reduce respiratory illnesses in community settings and lessen the impact of the H1N1 pandemic, the authors noted.

An accompanying editorial agreed with the researchers and suggested that use of a face mask and hand hygiene can be effective in reducing transmission of influenza and influenza-like illness. The editorial's lead author, Titus Daniels, MD, MPH, of Vanderbilt University, pointed out that the Centers for Disease Control and Prevention (CDC) currently recommends the use of a face mask only for individuals at increased risk for influenza or where H1N1 is circulating in the community setting. "These data can inform policymakers on the recommendations for mask use in the community and perhaps other settings," such as health care institutions, the editorial said.

Fast Facts:

In this study, researchers observed a reduction of influenza-like symptoms ranging from 35 to 51 percent by the use of face masks and hand sanitizers in university residence halls. The use of face masks and hand hygiene may reduce the frequency of respiratory illnesses in community settings and lessen the impact of the H1N1 pandemic.

Source: Infectious Diseases Society of America