With the e-health book application, it is now easy for everyone to book a COVID-19 vaccination. All you need to do is log into the app, declare your personal information and vaccination history, and then approve a COVID-19 injection to register yourself and your family. Hanoi is working to check local demand for vaccinations. In addition to via the e-health book app, bookings are also available in paper format, which have been delivered to each household. After registering, app users will receive information on vaccination locations and immunisation schedules as well as a QR code to check their information when receiving COVID-19 shots. All information about vaccinations is published on the COVID-19 vaccination portal. Vietnam is striving to inoculate some 70 percent of its population aged 18-65 by April 2022./.