Dear Dr. K;
I recently read something about micro needles and vaccines. Is that anything similar to my getting my flu shot intradermally? Actually yes, it is. As you know, the traditional and standard way to administer most vaccines (including Covid) is intramuscular; that is, injecting the vaccine fluid into a muscle. The vaccine is then processed by migratory immune cells in the blood vessels and lymph system. Obviously, this method works well. But the dermis of our skin actually contains 1,000 times…