Table 2.

Number of cases and hospitalizations and ICU admissions reported in each period, and percentage of cases with hospitalization and ICU admissions within 14 days.

	Delta period (01/11/2021–08/12/2021)							Omicron period (05/01/2022–25/01/2022)
	Case	Hosp	Prop	95% CI	ICU	Prop	95% CI	Case	Hosp	Prop	95% CI	ICU	Prop	95% CI
Global
≥10	48,874	1,881	3.8%	[3.7–4.0]	384	0.8%	[0.7–0.9]	560,658	4,886	0.9%	[0.8–0.9]	505	0.1%	[0.1–0.1]
10 to 39	19,145	119	0.6%	[0.5–0.7]	17	0.1%	[0.1–0.1]	279,917	520	0.2%	[0.2–0.2]	32	0.0%	[0.0–0.0]
40 to 59	18,184	361	2.0%	[1.8–2.2]	99	0.5%	[0.4–0.7]	207,552	913	0.4%	[0.4–0.5]	130	0.1%	[0.1–0.1]
60 to 79	9,482	903	9.5%	[8.9–10.1]	231	2.4%	[2.1–2.8]	54,895	1,818	3.3%	[3.2–3.5]	291	0.5%	[0.5–0.6]
≥80	2,063	498	24.1%	[22.3–26.0]	37	1.8%	[1.3–2.5]	18,294	1,635	8.9%	[8.5–9.4]	52	0.3%	[0.2–0.4]
Not vaccinated
≥10	13,875	558	4.0%	[3.7–4.4]	164	1.2%	[1.0–1.4]	100,596	1,249	1.2%	[1.2–1.3]	189	0.2%	[0.2–0.2]
10 to 39	9,885	92	0.9%	[0.8–1.1]	16	0.2%	[0.1–0.3]	76,471	235	0.3%	[0.3–0.3]	18	0.0%	[0.0–0.0]
40 to 59	2,954	212	7.2%	[6.3–8.2]	70	2.4%	[1.9–3.0]	18,781	270	1.4%	[1.3–1.6]	48	0.3%	[0.2–0.3]
60 to 79	893	197	22.1%	[19.4–24.9]	73	8.2%	[6.5–10.2]	4,320	449	10.4%	[9.5–11.3]	110	2.5%	[2.1–3.1]
≥80	143	57	39.9%	[31.8–48.4]	5	3.5%	[1.1–8.0]	1,24	295	28.8%	[26.1–31.7]	13	1.3%	[0.7–2.2]
Partially vaccinated
≥10	457	30	6.6%	[4.5–9.2]	13	2.8%	[1.5–4.8]	3,717	65	1.7%	[1.4–2.2]	19	0.5%	[0.3–0.8]
10 to 39	247	1	0.4%	[0.0–2.2]	0	0.0%	[0.0–1.5]	2,314	10	0.4%	[0.2–0.8]	1	0.0%	[0.0–0.2]
40 to 59	139	7	5.0%	[2.0–10.1]	4	2.9%	[0.8–7.2]	1,89	15	1.4%	[0.8–2.3]	5	0.5%	[0.1–1.1]
60 to 79	58	17	29.3%	[18.1–42.7]	9	15.5%	[7.3–27.4]	253	29	11.5%	[7.8–16.0]	10	4.0%	[1.9–7.1]
≥80	13	5	38.5%	[13.9–68.4]	0	0.0%	[0.0–24.7]	61	11	18.0%	[9.4–30.0]	3	4.9%	[1.0–13.7]
Fully vaccinated
≥10	33,898	1,204	3.6%	[3.4–3.8]	194	0.6%	[0.5–0.7]	366,060	1,826	0.5%	[0.5–0.5]	171	0.0%	[0.0–0.1]
10 to 39	8,972	26	0.3%	[0.2–0.4]	1	0.0%	[0.0–0.1]	188,777	263	0.1%	[0.1–0.2]	12	0.0%	[0.0–0.0]
40 to 59	15,019	134	0.9%	[0.7–1.1]	22	0.1%	[0.1–0.2]	158,083	516	0.3%	[0.3–0.4]	60	0.0%	[0.0–0.0]
60 to 79	8,322	646	7.8%	[7.2–8.4]	139	1.7%	[1.4–2.0]	16,929	680	4.0%	[3.7–4.3]	83	0.5%	[0.4–0.6]
≥80	1,585	398	25.1%	[23.0–27.3]	32	2.0%	[1.4–2.8]	2,271	367	16.2%	[14.7–17.7]	16	0.7%	[0.4–1.1]
Booster
≥10	596	87	14.6%	[11.9–17.7]	13	2.2%	[1.2–3.7]	89,268	1,742	2.0%	[1.9–2.0]	125	0.1%	[0.1–0.2]
10 to 39	18	0	0.0%	[0.0–18.5]	0	0.0%	[0.0–18.5]	11,834	12	0.1%	[0.1–0.2]	1	0.0%	[0.0–0.0]
40 to 59	57	8	14.0%	[6.3–25.8]	3	5.3%	[1.1–14.6]	29,182	110	0.4%	[0.3–0.5]	17	0.1%	[0.0–0.1]
60 to 79	201	42	20.9%	[15.5–27.2]	10	5.0%	[2.4–9.0]	33,320	658	2.0%	[1.8–2.1]	87	0.3%	[0.2–0.3]
≥80	320	37	11.6%	[8.3–15.6]	0	0.0%	[0.0–1.1]	14,932	962	6.4%	[6.1–6.8]	20	0.1%	[0.1–0.2]