The first 33,600 doses of Johnson & Johnson's single-shot vaccine will be delivered to Greece on Wednesday, said Health Secretary General for Primary Health Care Marios Themistokleous at Monday's live briefing.
Inoculations with this vaccine can therefore begin on Monday April 19, he added.
Meanwhile, citizens aged 18-59 who belong in high-risk groups can start booking their appointments on April 16. School teachers and anyone aged between 55-59 will be able to book their inoculation appointments as of April 21, while the online platform for all citizens aged 50-54 will open on April 24.
As of June, he noted, younger age groups will also begin to receive the vaccines.
The onset of thrombosis with thrombocytopenia (low platelet count) after the administration of an AstraZeneca vaccine is only a very rare occurrence, said the Greek National Vaccination Committee Maria Theodoridou at the same briefing.
To date, there is no official correlation between such an incident and a patient's previous history of thrombosis, she added, as there is only one chance in 100,000 people for any such incident to occur, whether -or not- a person has a history of thrombosis.
Moreover, she underlined, there has been no reported incidents of thrombosis after the administration of the second -and final- dose of the AstraZeneca vaccine.
At least 380,000 doses of the AstraZeneca vaccine have been administered in Greece so far.