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Table 3 Number of lost school days for the various closure strategies

From: Mitigation of infectious disease at school: targeted class closure vs school closure

Closure strategy (Threshold, duration)

Targeted class

Targeted grade

Whole school

No closure

0

0

0

3, 24 h

2.14 (3.27) [0-9]

2.34 (3.58) [0-10]

2.50 (4.33) [0-10]

3, 48 h

3.04 (4.83) [0-13]

3.00 (5.12) [0-14]

4.42 (7.26) [0-20]

3, 72 h

3.01 (5.17) [0-15]

3.21 (5.44) [0-16]

5.38 (8.13) [0-20]

3, 96 h

4.49 (7.62) [0-22]

4.93 (8.21) [0-24]

8.10 (11.5) [0-30]

3, 120 h

4.50 (8.41) [0-26]

5.20 (9.06) [0-28]

9.38 (13.4) [0-40]

3, 144 h

4.67 (8.72) [0-27]

5.33 (9.41) [0-28]

9.60 (13.7) [0-40]

2, 24 h

2.18 (3.36) [0-9]

2.31 (3.46) [0-10]

3.38 (4.73) [0-10]

2, 48 h

2.42 (4.37) [0-13]

3.05 (4.77) [0-14]

4.60 (7.16) [0-20]

2, 72 h

2.57 (4.77) [0-15]

3.44 (5.45) [0-16]

7.12 (8.54) [0-20]

2, 96 h

3.14 (6.11) [0-20]

3.92 (6.80) [0-22]

8.64 (11.2) [0-30]

2, 120 h

3.55 (6.37) [0-18]

4.38 (7.68) [0-22]

9.32 (12.4) [0-30]

2, 144 h

4.32 (7.38) [0-22]

4.63 (7.61) [0-22]

11.54 (13.7) [0-40]

  1. The baseline case in which no class is closed (“No closure”) has a zero cost in terms of lost school days. Standard deviations are given in parentheses and 5th and 95th percentiles in square brackets. Parameter values: β = 3.5 · 10-4 s -1, β com = 2.8 · 10-9 s -1, 1/ μ = 2 day, 1/ γ = 4 days, p A = 1/3.