Table 1.

Classification of successfully sequenced SARS-CoV-2 samples obtained from April 2022 to December 2023 by gender, residency, age, reason for genotyping, and vaccination status.

		Total (n = 3300)	Patient Samples per Year
			2022 (n = 1798)	2023 (n = 1502)
Sex	Male	1571	828	743
	Female	1729	970	759
Province	Perugia	2430	1364	1066
	Terni	870	434	436
Age group	≤18	153	113	40
	19–40	268	169	99
	41–60	567	357	210
	61–80	1062	537	525
	>80	1250	622	628
Reason for genotyping	ICU	99	53	46
	Hospitalization	741	425	316
	Immunocompromised	78	59	19
	Reinfection	115	65	50
	Random choice	2267	1196	1071
Vaccine doses at time of infection	0	329	207	122
	1	30	19	11
	2	259	154	105
	3	1850	1180	670
	4	571	177	394
	5	15	0	15
	Unknown	246	61	185