Table 3 Groups of potential contact partners

Home

All individuals living in one household.

Work

1) Grid cell group: all individuals working within a grid cell¹.

2) Work group: all individuals working within one grid cell¹ are randomly assigned to work groups. The target group size distribution is a normal distribution with a mean of 10 (SD = 2).

Education

1) Grid cell group: all individuals performing an educational activity within a grid cell¹.

2) Class A: all individuals aged 18 or younger within one grid cell¹ are assigned to classes. The target class size is 20 students and classes are stratified by age.

3) Class B: all individuals older than 18 within one grid cell¹ are randomly assigned to classes. The target class size is 20 students. There is no age stratification.

Shop

All individuals shopping within a grid cell¹.

Leisure

All individuals performing leisure activities within a grid cell¹ (not at home).