Table 1.
Model-predicted mean number of daily contacts per person (with SEs) compared with prepandemic model predictions, by country, setting and week, March–April 2020
| Country | Setting | Prior to | Week 2020–11 | Week 2020–12 | Week 2020–13 | Week 2020–14 | Week 2020–15 | ||||||
| COVID-19 | (9–15 March) | (16–22 March) | (23–29 March) | (30 March–5 April) | (6–12 April) | ||||||||
| Mean | SE | Mean | SE | Mean | SE | Mean | SE | Mean | SE | Mean | SE | ||
| Belgium | Home | 3.15 | 0.15 | 1.33 | 0.05 | 1.35 | 0.03 | ||||||
| Community | 5.34 | 0.3 | 0.64 | 0.06 | 0.74 | 0.03 | |||||||
| Work | 3.05 | 0.36 | 0.35 | 0.07 | 0.36 | 0.04 | |||||||
| Overall | 11.78 | 0.48 | 2.29 | 0.11 | 2.38 | 0.06 | |||||||
| France | Home | 2.7 | 0.07 | 1.28 | 0.03 | 1.31 | 0.03 | 1.25 | 0.03 | ||||
| Community | 4.59 | 0.13 | 0.5 | 0.04 | 0.45 | 0.03 | 0.41 | 0.03 | |||||
| Work | 2.37 | 0.12 | 0.24 | 0.04 | 0.23 | 0.03 | 0.26 | 0.04 | |||||
| Overall | 10.3 | 0.21 | 1.96 | 0.07 | 1.93 | 0.05 | 1.89 | 0.06 | |||||
| Germany | Home | 2.73 | 0.1 | 1.52 | 0.04 | 1.44 | 0.03 | 1.45 | 0.02 | 1.46 | 0.02 | ||
| Community | 2.97 | 0.14 | 1.33 | 0.07 | 1.13 | 0.05 | 0.93 | 0.03 | 1.15 | 0.04 | |||
| Work | 1.82 | 0.17 | 0.76 | 0.1 | 0.56 | 0.05 | 0.71 | 0.05 | 0.68 | 0.05 | |||
| Overall | 8.03 | 0.27 | 3.29 | 0.12 | 3.1 | 0.09 | 2.94 | 0.06 | 3.15 | 0.06 | |||
| Italy | Home | 3.56 | 0.19 | 1.67 | 0.03 | 1.63 | 0.03 | 1.57 | 0.03 | 1.5 | 0.04 | 1.6 | 0.05 |
| Community | 7.91 | 0.36 | 0.71 | 0.04 | 0.6 | 0.03 | 0.47 | 0.03 | 0.48 | 0.03 | 0.56 | 0.05 | |
| Work | 5.28 | 0.53 | 0.51 | 0.04 | 0.36 | 0.04 | 0.25 | 0.03 | 0.21 | 0.03 | 0.3 | 0.06 | |
| Overall | 18.19 | 0.61 | 2.9 | 0.08 | 2.47 | 0.06 | 2.23 | 0.06 | 2.17 | 0.06 | 2.36 | 0.09 | |
| Netherlands | Home | 3 | 0.23 | 1.57 | 0.04 | 1.56 | 0.04 | ||||||
| Community | 7.13 | 0.76 | 0.85 | 0.04 | 0.91 | 0.04 | |||||||
| Work | 4.97 | 1.08 | 0.67 | 0.06 | 0.74 | 0.07 | |||||||
| Overall | 15.03 | 1.2 | 2.97 | 0.09 | 3.11 | 0.1 | |||||||
| Spain | Home | 1.63 | 0.04 | 1.61 | 0.03 | 1.65 | 0.03 | ||||||
| Community | 0.66 | 0.05 | 0.45 | 0.03 | 0.49 | 0.03 | |||||||
| Work | 0.25 | 0.05 | 0.19 | 0.03 | 0.26 | 0.03 | |||||||
| Overall | 2.47 | 0.08 | 2.25 | 0.05 | 2.3 | 0.06 | |||||||
| UK | Home | 3.54 | 0.14 | 1.65 | 0.06 | 1.62 | 0.05 | 1.51 | 0.03 | 1.52 | 0.03 | 1.56 | 0.04 |
| Community | 4.07 | 0.21 | 1.27 | 0.09 | 1.3 | 0.1 | 0.62 | 0.03 | 0.51 | 0.03 | 0.53 | 0.04 | |
| Work | 2.89 | 0.39 | 0.65 | 0.12 | 0.51 | 0.12 | 0.37 | 0.04 | 0.2 | 0.04 | 0.2 | 0.04 | |
| Overall | 10.58 | 0.35 | 3.43 | 0.17 | 3.18 | 0.15 | 2.4 | 0.05 | 2.17 | 0.06 | 2.28 | 0.07 | |
| USA | Home | 1.66 | 0.05 | 1.69 | 0.03 | 1.66 | 0.02 | 1.56 | 0.04 | 1.69 | 0.03 | ||
| Community | 1.5 | 0.07 | 1.07 | 0.05 | 0.8 | 0.03 | 0.7 | 0.03 | 0.72 | 0.03 | |||
| Work | 0.64 | 0.08 | 0.55 | 0.06 | 0.47 | 0.04 | 0.45 | 0.05 | 0.41 | 0.05 | |||
| Overall | 3.67 | 0.13 | 3.17 | 0.08 | 2.82 | 0.06 | 2.67 | 0.05 | 2.72 | 0.06 | |||
The ’overall’ category encompasses contacts reported in all four surveyed settings, ie, home, school, work and general community.