Needleless, orally administered vaccine can protect millions from hepatitis B, and is both safer and less expensive than injections. Physicists introduced a new technique that might lead to an optimal oral Hepatitis B vaccine with technology commonly used in solid state physics.

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Needleless, orally administered vaccine can protect millions from hepatitis B, and is both safer and less expensive than injections. Physicists introduced a new technique that might lead to an optimal oral Hepatitis B vaccine with technology commonly used in solid state physics.