Re-registration means that the original health code is invalid, so you need to re-register and start remembering again. This is for the sake of personal health.
Cloud health, also known as health cloud, is a concept recently put forward, which refers to providing online, real-time, up-to-date health management, disease treatment, disease diagnosis and human functions for medical patients and people with health needs through cloud computing, cloud storage, cloud services, Internet of Things, mobile Internet and other technical means, and through the joint, interaction, exchange and cooperation of medical institutions, experts, medical research institutions, medical production enterprises and other relevant departments.