Surgical masks as good as respirators for flu and respiratory virus protection: Newsroom - UT Southwestern, Dallas, TX
Premium Photo | Pink piggy bank in protective mask swine flu and h1n1
Worry? Relax? Buy Face Mask? Answers on Flu - The New York Times
What is the efficacy of standard face masks compared to respirator masks in preventing COVID-type respiratory illnesses in primary care staff? - The Centre for Evidence-Based Medicine
CDC H1N1 Flu | Interim Recommendations for Facemask and Respirator Use to Reduce Novel Influenza A (H1N1) Virus Transmission
A young woman wears a face mask preventing an infection with swine flu as she arrives from Mexico at Rhein Main airport in Frankfurt Main, Germany, 28 April 2009. The masks were
Swine flu spreading across eastern Europe and Middle East | Global development | The Guardian
Swine Flu: Do's and Don'ts To Prevent Deadly Influenza
Study: Face masks seem to protect against flu - CNN.com