Why did COVID-19's vaccination record disappear?

The reasons for the disappearance of vaccination records in COVID-19 are as follows:

1. Identity information registration error: If the vaccination record does not match the actual situation of the individual, it may be because the identity information is not registered correctly in the system. In this case, you need to go to the vaccination clinic to supplement the registration certificate information, and after the relevant data is synchronized to Health Treasure, you can query the vaccination record.

2. Network abnormality: If the network is not smooth or blocked, vaccination records may not be displayed. In this case, you need to adjust the network and re-query.

3. Query platform problem: If the platform of vaccination record is being adjusted, the record may not be displayed temporarily. In this case, you need to wait patiently for platform adjustment.