According to current regulations in Greece, the vaccination certificates are valid for seven months from the day of the second vaccination for those who received the double-dose vaccines, and three months for those with single-shot vaccines, reports Xinhua news agency.
Booster shots may be administered three months after a completed vaccination.
Marios Themistocleous, General Secretary of the Primary Health Care at the Greek Ministry of Health, said at a press briefing that these people’s vaccination certificates will become valid again until they receive a booster shot.