Blockchain based digital vaccine passport
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Travel has been challenging recently since different nations have implemented varied immigration and travel policies. For the time being, immigration officials want proof of each person's immunity to the virus. A vaccine passport serves as evidence that a person has tested negative for or is immune to a particular virus. In terms of COVID-19, those who hold a vaccine passport will be permitted entry into other nations as long as they can provide proof that they have COVID-19 antibodies from prior infections or from full COVID-19 immunizations. To reduce time and effort spent managing data, the vaccination passport system has been digitalized. The process of contact tracing may be facilitated by digitization. The "Blockchain technology" system, which is currently in use, has demonstrated its security and privacy in systems for data exchange among bitcoin users. The Digital Vaccination Passport scheme can use Blockchain technology. The end result would be a decentralized, traceable, transparent, reliable, auditable, secure, and trustworthy solution based on the Ethereum block-chain that would allow tracking of vaccines given and the history of diseases.
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