There is a gray needle on the upper right of the green code.

This means that health card holders have been vaccinated with COVID-19 vaccine. (The current health card should be called health code. For example, from May, 20021year, the "Hubei Health Code" was upgraded in an all-round way, and the "Hubei Health Code" of Hubei residents who have been vaccinated with COVID-19 vaccine will be automatically added with a gold border and a small gold shield in the central area of Hubei Health Code. There is also an injection icon under the health code, indicating that the holder of "Hubei Health Code" has been vaccinated with COVID-19 vaccine.