PHILADELPHIA -- A revised analysis of data on the ability of N95 respirators to prevent transmission of viral infections, including influenza, to health care workers raised new doubts about the appropriateness of recent guidance from the Centers for Disease Control and Prevention on N95 use for influenza protection.
The new analysis of results from an Australian and Chinese study that compared the efficacy of N95 respirators and surgical masks in blocking transmission of influenza and other viruses to health care workers showed that the relatively expensive and uncomfortable respirators were not significantly better than surgical masks for preventing transmission, Holly Seale, Ph.D., reported at the annual meeting of the Infectious Diseases Society of America (IDSA).
The report by Dr. Seale...
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