Vaccination information still exists after the health code is unexpectedly unbound and rebound. The vaccination information is registered with your ID number, so it has nothing to do with your account.
Click Unbind and it will be updated immediately.
After WeChat enters the local provincial health code applet, find the family member management above the health code and select the family member to unbind.
After unbinding the information of family members, the information of family members will not appear in your health code, and you can add it back if necessary.