https://freewestmedia.com/2021/11/15/introducing-subcutaneous-vaccine-passports/
Medical information can be stored under the skin with the help of microneedles.
Published: November 15, 2021, 11:11 am
The vaccination certificate of the future will get under your skin according to researchers at the Massachusetts Institute of Technology (MIT). A colour pattern with the vaccination dose is injected into the skin and not visible to the naked eye. The colour contains quantum dots no larger than a few nanometers.