Association between COVID-19 vaccination status, time elapsed since the last vaccine dose, morbidity, and absenteeism among healthcare personnel: A prospective, multicenter study

Helena C. Maltezou, Maria N. Gamaletsou, Dimitra‐Maria Koukou, Theodoros V. Giannouchos, Flora Sourri, Natalia Syrimi, Αmalia Karapanou, Nikolaos Lemonakis, Emmanuela Peskelidou, Konstantina Papanastasiou, Periklis Panagopoulos, Kyriakos Souliotis, Athanasia Lourida, Dimitrios Hatzigeorgiou, Nikolaos V. Sipsas