ISTANBUL (Reuters) - Ecumenical Patriarch Bartholomew, the spiritual head of some 300 million Orthodox Christians worldwide and based in Istanbul, has tested positive for COVID-19, the Patriarchate press office said on Friday.

       In a statement, the press office said 81-year-old Patriarch Bartholomew was fully vaccinated against the disease and only experiencing mild symptoms.

       (Reporting by Murad Sezer; Editing by Alison Williams)