Blockchain-Based Supply Chain Management System for Secure Vaccine Distribution

Vaccination is one of the best ways to stop or at least slow the spread of infectious illnesses. There are various logistical concerns raised by this medical technique. Millions of people worldwide participate in preventative vaccination programs every year, whether it is the seasonal flu shot, immunizations for children, or other vaccines. An outbreak of disease can be avoided by using preventative vaccinations before the sickness ever appears. Reactive vaccination occurs during an infectious disease outbreak or in response to a bioterror strike, and it is distinct from preventative immunization. Thus, this paper proposes a solution for privacy and security issues in the supply chain industry. To overcome this problem, in this paper, we present an efficient blockchain-based vaccine supply chain management where smart contracts and WEB 3.0 play a major in securing the data. The web application developed for this paper can be used by four types of users: Super admin, Hospital, Citizen, and Manufacturer, where Super admin can govern the whole system. Then through this application, manufacturers can add their vaccines and sell those vaccines to the hospitals for a particular price and the hospitals can purchase the vaccines by paying the quoted price to the manufacturer. Hospitals can purchase vaccines from manufacturers and view the appointment status of citizens, and the citizens are allowed to book their appointments for vaccination. In addition, it offers foolproof data protection that prevents hackers from altering information in any way. To secure information at its source, a new framework known as WEB 3.0 incorporates a blockchain framework. This paper provides a secure end-to-end data management system that allows people to book appointments, purchase vaccines, and sell them online.