From: Developing guidelines for school closure interventions to be used during a future influenza pandemic
 |  | School closure duration | |||||
---|---|---|---|---|---|---|---|
 |  | 2 weeks | 4 weeks | 8 weeks | |||
R0 | Intervention | Attack rate | Activation trigger range | Attack rate | Activation trigger range | Attack rate | Activation trigger range |
1.5 | none | 32.5 | Â | 32.5 | Â | 32.5 | Â |
 | ISC | 25.0 | 30 - 70 | 22.7 | 20 - 50 | 19.0 | 10 - 30 |
 | SSC | 24.7 | 60 - 80 | 22.4 | 40 - 60 | 18.3 | 20 - 30 |
 | ISC + AV | 17.3 | 1 - 30 | 16.0 | 1-30 | 14.0 | 1-20 |
 | SSC + AV | 17.0 | 30 - 40 | 15.9 | 20-30 | 13.8 | 20-30 |
2.0 | none | 49.9 | Â | 49.9 | Â | 49.9 | Â |
 | ISC | 45.0 | 40 - 90 | 43.0 | 10 - 70 | 41.0 | 1 - 10 |
 | SSC | 45.2 | 70 - 90 | 42.8 | 30 - 90 | 40.5 | 10 - 30 |
 | ISC + AV | 35.5 | 1- 80 | 33.6 | 20 - 90 | 31.6 | 1 - 10 |
 | SSC + AV | 35.3 | 70 - 90 | 33.4 | 50 - 90 | 31.5 | 10 - 50 |
2.5 | none | 58.8 | Â | 58.8 | Â | 58.8 | Â |
 | ISC | 55.8 | 30 - 90 | 54.8 | 1 - 20 | 54.5 | 1 - 50 |
 | SSC | 55.7 | 80 - 90 | 54.7 | 10 - 90 | 54.2 | 1 - 50 |
 | ISC + AV | 46.7 | 30 - 90 | 45.5 | 1 - 90 | 44.8 | 1 - 10 |
 | SSC + AV | 46.7 | 60 - 90 | 45.5 | 20 - 90 | 44.3 | 1 - 30 |