Could dissolvable microneedles replace injected vaccines?

Flu vaccines delivered using microneedles that dissolve in the skin can protect people against infection even better than the standard needle-delivered vaccine, according to new research. The authors of the study say their dissolvable patch - the only vaccination system of its kind - could make vaccination easier, safer and less painful. According to the World Health Organization, immunization prevents an estimated 2-3 million deaths every year. T

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