Table 1 Overview of 353 confirmed cases and type of quarantine ordered from 9 March to 8 December 2020 in the County Health Department Ploen

Primary cases

1°contact (Hh the same as primary case)

Hh quarantine based on direct exposure (mean Hh size = (225 + 290)/219 = 2.35)

219 total

225

290

–

n/a

n/a

56 single

56

–

–

n/a

n/a

112 multiple w/o sec. cases

118

188

–

n/a

n/a

51 multiple with sec. cases

51

102

61

n/a

n/a

1°contact (different Hh as primary case) without 2°contacts

Hh quarantine based on direct exposure

(mean Hh size = (79/63 = 1.25)

63 total

n/a

79

n/a

n/a

40 single—no case

n/a

40

–

n/a

n/a

15 single—as case

n/a

15

15

n/a

n/a

8 multiple—all exposed

n/a

24

10

n/a

n/a

1°contact (different Hh as primary case)

with 2°contacts; for the latter

Hh quarantine based on indirect exposure

(mean Hh size = (101 + 179)/90 = 3.11)

(mean Hh size = (8 + 32 + 1 + 5)/9 = 5.11)*

90 total

n/a

101

179

68 without contact 1° pos

n/a

78

–

111

–

13 with contact 1° pos.only

n/a

14

13

31

-

8 with contact 2° pos

n/a

8

8

32

20

1 with contact 2° pos

n/a

1

–**

5

1

Total

372

225

470

107

179

21

353 cases total (100%)

(63.7%)

(30.3%)

(5.9%)