Does the international travel health certificate need to be stamped at a tertiary hospital?

Required. To be valid, the international travel health certificate must have the visa date, a doctor's signature, and the seal of the international health and quarantine agency. The international health and quarantine agency includes top-level hospitals, so it is required. People should carry it with them at all times when entering and leaving the country or in their place of residence for inspection. International health and quarantine agencies include The travel health certificate cannot be altered or lent to others.