Antibody levels after COVID-19 vaccination decrease more rapidly than believed, Swedish study finds
More than 2,000 hospital employees were observed for the study
Nature: Greece used AI to curb COVID: what other nations can learn
Authorities launched a system that uses a machine-learning algorithm to determine which travellers entering the country should be tested for COVID-19
Coronavirus Greece – 1,100 new cases, 337 intubated, 24 deaths
Since the beginning of the pandemic, 3,129 patients have been discharged from the ICU