CO21 | The Strategy on Healthcare-Associated Infections Prevention in Patients With Previous SARS-CoV 2 Infection. Analysis of the Cost and Consumption of Antibiotics: M. Lugarà1, D. Birra2, C. Bologna1, D.V. Iula3, R. Piscitelli4, R. Natale5, L.M. Capece5, P. Tirelli1, M. Borrelli5, V. Nuzzo1 | 1Presidio Ospedaliero Del Mare -Unit of General Internal Medicine, Naples, 2Presidio Ospedaliero Del Mare -Unit of General Internal Medicine Naples, 3Presidio Ospedaliero Del Mare, Microbiology Unit, Naples, 4Presidio Ospedaliero Del Mare, Department of Pharmacy, Naples, 5Department of Clinical Medicine an D Surgery-Internal Medicine-University Federico II, Naples, Italy. Ital J Med 2025, 19 (1.online). https://doi.org/10.4081/.