The two big problems for any VACS OK (vaccine database):
- How do you get the vaccine data from all over the world into the database?
1) There is a security/integrity issue, whereby certain criminal actors may have write access to the database (because there are 10.000+ sites worldwide, where vaccines are administered);
2) Governments might not be inclined to centralize all vaccination data and are unwilling to share this data with shady actors (e.g. China);