Table 1 Study population

From: Viral loads of Delta-variant SARS-CoV-2 breakthrough infections after vaccination and booster with BNT162b2

Vaccination status

Time since second shot (d)

7–30

31–60

61–120

121–180

>180

Total

Unvaccinated

Number (100%)

–

–

–

–

–

3,100

Number of male (%)

–

–

–

–

–

1,304 (42)

Number of female (%)

–

–

–

–

–

1,796 (58)

Age in years (s.d.)

–

–

–

–

–

40.3 (14.4)

Mean RdRp Ct (s.d.)

–

–

–

–

–

27.7 (5.0)

Mean N Ct (s.d.)

–

–

–

–

–

25.1 (5.0)

Mean E Ct (s.d.)

–

–

–

–

–

22.7 (4.9)

Two-dose-vaccinated

Number (100%)

17

25

391

7,486

5,015

12,934

Number of male (%)

4 (24)

12 (48)

133 (34)

3,274 (44)

2,362 (47)

5,785 (45)

Number of female (%)

13 (76)

13 (52)

258 (66)

4,212 (56)

2,653 (53)

7,149 (55)

Age in years (s.d.)

42.9 (19.8)

40.8 (12.1)

36.6 (13.8)

39.2 (13.3)

46.6 (15.0)

42.0 (14.5)

Mean RdRp Ct (s.d.)

31.2 (4.5)

29.3 (5.1)

27.2 (4.8)

27.0 (5.0)

26.7 (5.0)

26.9 (5.0)

Mean N Ct (s.d.)

29.5 (4.1)

27.7 (5.0)

25.9 (4.9)

25.5 (5.0)

25.2 (5.1)

25.4 (5.0)

Mean E Ct (s.d.)

26.9 (4.1)

25.1 (5.1)

23.2 (4.8)

23.0 (4.9)

22.8 (5.0)

22.9 (4.9)

Booster-vaccinated

Number (100%)

–

–

–

19

500

519

Number of male (%)

–

–

–

11 (58)

279 (56)

290 (56)

Number of female (%)

–

–

–

8 (42)

221 (44)

229 (44)

Age in years (s.d.)

–

–

–

58.7 (20.0)

58.6 (13.7)

58.6 (14.0)

Mean RdRp Ct (s.d.)

–

–

–

29.2 (4.4)

29.1 (4.7)

29.1 (4.7)

Mean N Ct (s.d.)

–

–

–

27.4 (4.3)

27.5 (4.7)

27.5 (4.7)

Mean E Ct (s.d.)

–

–

–

25.2 (4.4)

25.2 (4.6)

25.2 (4.6)