Table 3.

Number of Participants with COVID-19 Infections by Age Group

	Total	By Age Group
		18–29 Years	30–39 Years	40–49 Years	50–59 Years	60+ Years
Total number of study participants	11,826	1601	2932	2238	2161	2891
Ever vaccinated	8554	994	2094	1439	1590	2436
o Completed vaccine regimen	7532	827	1873	1224	1375	2233
– Completed two doses of Pfizer/Moderna	6880	734	1746	1104	1225	2071
o Received only one dose of Pfizer/Moderna	1022	167	221	215	215	203
Not vaccinated	3272	607	838	799	571	455
Total number of infected participants	3290	594	907	784	587	418
Infection while fully vaccinated (ie, after 14 days of last dose)*, n (%)	74(1.0%)	12(1.5%)	22(1.2%)	14(1.1%)	8(0.6%)	18(0.8%)
Infected while partially vaccinated€, n(%)	198(2.3%)	25(2.5%)	59(2.8%)	43(3.0%)	40(2.5%)	31(1.3%)
o After final dose, awaiting presumed immunity (0–13 days after final dose)	15(0.2%)	2(0.2%)	6(0.3%)	3(0.2%)	2(0.1%)	2(0.1%)
o Between two doses	117(1.7%)	12(1.6%)	33(1.9%)	28(2.5%)	28(2.3%)	16(0.8%)
o After 1st dose and did not receive 2nd dose	66(6.5%)	11(6.6%)	20(9.0%)	12(5.6%)	10(4.7%)	13(6.4%)
Infected while unvaccinated/before vaccinationΩ, n(%)	3018(25.5%)	557(34.8%)	826(28.2%)	927(41.4%)	539(24.9%)	369(12.8%)
o Infection prior to first dose	1160(13.6%)	146(14.7%)	266(12.7%)	266(18.5%)	265(16.7%)	217(8.9%)
o Infection and never vaccinated	1858(56.8%)	411(67.7%)	560(66.8%)	461(57.7%)	274(48.0%)	152(33.4%)
Time interval from COVID-19 vaccination to infection
For infections after fully vaccinated, number of days since presumed immunity (N)	74	12	22	12	8	18
Mean (SD)	101.4 (44.99)	96.3 (46.90)	109.3 (50.00)	92.2 (45.14)	99.4 (37.72)	103.0 (43.19)
Median [IQR]	104.5 [77.0–135.0]	110.5 [46.5–138.0]	105.5 [77.0–143.0]	98.0 [77.0–120.0]	105.0 [99.0–113.5]	104.0 [79.0–127.0]
Min - Max	2–196	29–150	2–196	10–150	14–146	13–178
For infections after partially vaccinated, number of days since first dose before receiving the 2nd dose, or days since completed doses and before reaching full immunity) (N)	198	25	59	43	40	31
Mean (SD)	11.3 (21.84)	6.8 (3.77)	9.0 (5.36)	12.3 (18.74)	17.9 (42.42)	9.8 (12.05)
Median [IQR]	8.0 [5.0–12.0]	6.0 [4.0–9.0]	8.0 [5.0–12.0]	10.0 [5.0–14.0]	7.0 [4.0–11.5]	7.0 [3.0–13.0]
Min - Max	0–223	0–15	0–28	1–128	0–223	0–66

 Notes: *Percentages based on 7532 participants who had completed doses. ^€ Percentages based on 8554 participants who received any vaccination. ^Ω Percentages based on all 11,826 participants.