Table 1.

Number of contacts screened per daycare centre

	Faecal PCR test		Serology		Immune	Not participating
	Neg.	Pos.	Neg.	Pos.
Centre A*	25	3	6	0	6	3
Centre B	42	4	10	0	1	3
Direct†	(7)	(4)	(6)	(0)	(0)	(3)
Indirect‡	(35)	(0)	(4)	(0)	(1)	(0)
Centre C	9	0	12	1	5	3
Centre D	13	0	10	0	9	8
Total	89	7	38	1	21	17

^*Total contact (n = 137), screening not indicated (n = 94) (see Fig. 2).

^†Direct contact: group member (see Fig. 2).

^‡Indirect contact: sharing toilet/changing facilities on alternate days (see Fig. 2).