Table 1 Distribution of study participants, overall and by SARS-CoV-2 exposure history.

From: Durability of antibody response to vaccination and surrogate neutralization of emerging variants based on SARS-CoV-2 exposure history

 

Overall

PCR + 

Seropositive

Seronegative

N

27

4

9

14

Age (years)

21–30

31–40

41–50

 > 50

N

10

6

5

6

N

0

1

2

1

N

7

1

1

0

N

3

4

2

5

Gender

Female

Male

N

14

13

N

3

1

N

4

5

N

7

7

Vaccine type

Moderna

Pfizer

N

11

16

N

3

1

N

2

7

N

6

8

Timing of blood sampling

Dose 1 (days after first dose)

Dose 2 (days after second dose)

Follow up (days after first dose)

Mean (range)

18.5 (11–23)

19.8 (8–26)

95.5 (70–124)

Mean (range)

14.3 (11–20)

19a

81.0 (70–102)

Mean (range)

19.2 (16–23)

20.0 (8–26)

94.8 (79–124)

Mean (range)

19.3 (17–21)

19.7 (14–26)

100.1 (88–120)

  1. aThree PCR + participants were not vaccinated with dose 2.