Vaccine patch takes the pain out of immunization

http://nma.tv | http://www.nma.com.tw A new vaccine patch that replaces injections has been tested in labs and could soon bring an end to the much dreaded immunization shot, and pave the way for 'mail-order' inoculations. The patch contains hundreds of microneedles that painlessly penetrate the skin, delivering the shot before dissolving. The following animation shows how the vaccine patch works.