You need to see this from MIT.
https://www.youtube.com/watch?v=3MOYr70j6gU
https://news.mit.edu/2019/storing-vaccine-history-skin-1218
Original source: https://www.youtube.com/watch?v=3MOYr70j6gU
https://www.youtube.com/watch?v=3MOYr70j6gU
https://news.mit.edu/2019/storing-vaccine-history-skin-1218
Original source: https://www.youtube.com/watch?v=3MOYr70j6gU