Table 1 Schedule of administering questionnaires, symptom diaries and home visits for sampling.

From: SARS-CoV-2 RNA and antibody dynamics in a Dutch household study with dense sampling frame

Day

Visit 1

Visit 2

Visit 3

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15 (range 14–21)

35 (range 28–42)

Start questionnaire

x

               

Symptoms diary

 

x

x

x

x

x

x

x

x

x

x

x

x

x

  

Final questionnaire

               

x

Blood (serum)—Wantai

222

             

210

149

Blood (serum)—Microarray S1 and N

230

             

221

208

Nasopharyngeal swab

183a

 

53

  

46

  

51

  

55

  

221

 

Oropharyngeal swab

187a

 

53

  

47

  

51

  

54

  

230

 

Oral fluid

219

             

206

189

Feces

222

             

226

195

  1. The numbers in the table indicate the amount of analysed specimens in 242 participants.
  2. aA naso- and oropharyngeal swab was not collected for the index case at the first home visit, as these persons were already swabbed a few days before and tested SARS-CoV-2 positive.
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