Nano Vaccine For Hepatitis B Shows Promise For Third World

A new needle-less vaccine is highly effective and can be stored without refrigeration, studies in animals show. The vaccine should also be safer to administer than existing hepatitis B vaccines and effective with only two immunizations. The technique, a nanoemulsion given in the nose, is a step closer to human trials, possibly within a year. Hepatitis B kills an estimated 1 million people annually.

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