Pain-Free Microneedle Influenza Vaccine is Effective, Long-Lasting, Georgia State University Study

Scientists have developed an influenza vaccine delivered via microneedle patch that provided 100 percent protection against a lethal influenza virus in mice more than one year after vaccination. They report their findings in the September 2013 issue of the journal Clinical and Vaccine Immunology. Microneedles are a medium for delivery of influenza vaccine that avoids the pain associated with ordinary hypodermic needles. They are a mere seven tenths of a millimeter in length, and the volume of vaccine -- a major contributor to pain -- is minuscule.

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