Stretching the skin could enable vaccines to be given without a needle

Using a suction device to stretch the skin seems to increase its permeability and stimulate immune cells, which could allow vaccines to be administered topically

​Using a suction device to stretch the skin seems to increase its permeability and stimulate immune cells, which could allow vaccines to be administered topically Using a suction device to stretch the skin seems to increase its permeability and stimulate immune cells, which could allow vaccines to be administered topically