Μισά από τα κρυολογήματα είναι Covid, προειδοποιούν οι επιστήμονες

People make their way at a central market street in Athens, Sunday, Dec.19, 2021. Greeks are preparing to celebrate a second Christmas under pandemic restrictions, as the rate of death attributed to COVID-19 nears record levels. (AP Photo/Yorgos Karahalis) AP