Μake us preferred on GoogleGreece’s National Blood Donation Center (EKEA) has introduced updated blood donation measures following the detection of new West Nile virus cases, expanding surveillance and strengthening safeguards to ensure the safety of blood transfusions during the virus transmission season. Affected areas: Municipalities where at least one human case of West Nile virus has been recorded during the current transmission season. Municipalities where at least one human case of West Nile virus has been recorded during the current transmission season. Individuals who have recovered from West Nile virus infection may donate blood 120 days after diagnosis. Medical screening of donors will place particular emphasis on symptoms that could indicate a mild West Nile virus infection.