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.
Some universities have mask mandates, other universities require the COVID vaccine, and some even have a system in place that allows complaints and violations of safety policies to be reported to administration. Point Park University, located in Pittsburgh, Pennsylvania, has implemented all three.