The ability of a country to control the course of a pandemic is dependent on the ability of that country to verify vaccines. With the use of an accurate and dependable verification system, governments, businesses, and other organizations can assess the safety of both indoor and outdoor gatherings, allowing them to plan accordingly. From 2009 until 2017, Dr. Tom Frieden served as the director of the Centers for Disease Control and Prevention (CDCP). He pushes for five basic elements for a vaccination verification mechanism, which he believes are necessary. Each system must have its own user interface, validation, data storage, retrieval methods, and security protocols, all of which must be distinct from the others. The ability to use paper immunization records in conjunction with other personal verification, such as a photo ID, should be available. The system must only be used to check immunization records, and not for other purposes. And it must be available in real time, "for example, while people are going through airport security," according to the author.
Blockchain technology has the potential to give a realistic answer to the issues of vaccine verification, as well as to assist in meeting the objectives described by Frieden. Because of the decentralized and encrypted nature of blockchain technology, it is exceedingly difficult to tamper with the information that is kept on the ledger. The fact that this is addressed addresses a critically important requirement of a vaccine verification mechanism.
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