In the study researchers compared the efficacy of immunizing rabbits with the current anthrax vaccine intradermally using a microneedle and intramuscularly using a conventional needle .
试验中，研究者比较了用显微针皮下注射和使用传统针肌肉注射当前的炭疽疫苗免疫兔的效率。
In the study , one group of mice received the influenza vaccine from traditional hypodermic needles ; another group received the vaccine through the dissolving microneedles ; and a control group received the microneedle patches not containing any vaccine .
Several other alternatives exist , like super-thin microneedles , as wide as a human hair , and a microneedle patch , which deliver drugs with no pain and simply dissolve on the skin .
