A fractional-order mathematical model based on vaccinated and infected compartments of SARS-CoV-2 with a real case study during the last stages of the epidemiological event. - Halis Bilgil; Ali Yousef; Ayhan Erciyes; Ümmügülsüm Erdinç; Zafer Öztürk (J. Comput. Appl. Math., 2023)