Breakthrough COVID-19 Infections after Booster SARS-CoV-2 Vaccination in a Greek Cohort of People Living with HIV during the Delta and Omicron Waves oleh Konstantinos Protopapas, Konstantinos Thomas, Charalampos D. Moschopoulos, Eirini Oktapoda, Eirini Marousi, Eirini Marselou, Nikiforos Stamoulis, Christos Filis, Pinelopi Kazakou, Chrysanthi Oikonomopoulou, Georgios Zampetas, Ourania Efstratiadou, Katerina Chavatza, Dimitra Kavatha, Anastasia Antoniadou, Antonios Papadopoulos