|
Study participants (n)
|
730
|
325
|
322
|
83
|
N/A
|
|
Risk exposure
|
|
Q1: Known contact to SARS-CoV-2 positive patient or suspected SARS-CoV-2 patient, n (%)
|
473 (65)
|
276 (85)
|
197 (61)
|
N/A
|
0.01#
|
|
Q2: Unknown contact to SARS-CoV-2 positive patient, n (%)
|
275 (38)
|
178 (55)
|
96 (30)
|
N/A
|
0.01#
|
|
Q3: In terms of unknown contact: PPE used was a surgical mask or unprotected, n (%)
|
74 (27)
|
15 (8)
|
58 (60)
|
N/A
|
< 0.01#
|
|
Awareness of symptoms and COVID-19
|
|
Q4: Flu symptoms within last 10 months, n (%)
|
360 (50)
|
154 (47)
|
169 (52)
|
37 (44)
|
0.31##
|
|
Q5: Self assessment: Do you think you have been infected with SARS-CoV-2 or COVID-19, n (%)
|
83 (16)
|
61 (19)
|
34 (10)
|
8 (10)
|
0.02##
|
|
Seroprevalence SARS-CoV-2 ab or PCR§
|
|
Sero + and PCR + , n
|
6
|
2
|
3
|
1
|
ND
|
|
Sero + but PCR − , n
|
3
|
1
|
1
|
1
|
ND
|
|
PCR + but Sero − , n
|
4
|
1
|
3
|
0
|
ND
|
|
n positive/ n paticipants
|
13/730
|
4/325
|
7/322
|
2/83
|
ND
|
|
SARS-CoV-2 incidence
|
|
Incidence, %
|
1.8
|
1.2
|
2.2
|
2.4
|
0.58##
|
