Table 1. Overview of the total approached and those who responded.

	Laboratory confirmed cases		Household contacts
	Sent	Responded and included (% responded; % of the sample)	Sent	Responded and included (% responded; % of the sample)
Total	1262	535 (42%∶100%)	140	44 (31%∶100%)
5–15 yrs	197	87 (44%∶16%)	23	18 (78%∶41%)
16–24 yrs	146	48 (33%∶9%)	7	4 (57%∶9%)
25–64 yrs	808	373 (46%∶70%)	31	20 (65%∶45%)
65 yrs and over	55	26 (47%∶5%)	3	2 (67%∶5%)
Unknown	56	1 (2%∶0%)	76	0 (0%∶0%)
Sex (female)	NK	307 (57%)	NK	25 (57%)
Vaccination status confirmed by the GP		532	Not requested
3 or more doses	Median age: 21	196 (37%)
1 or 2 doses	Median age: 32	33 (6%)
Not vaccinated	Median age: 44	68 (13%)
Unknown vaccination status	Median age: 46	235 (44%)
Socio-economic status
20% most affluent	110 (9%)	40 (7%)
20% less affluent	200 (17%)	78 (14%)
20% middle	241 (20%)	113 (20%)
20% more deprived	305 (25%)	146 (26%)
20% most deprived	348 (29%)	175 (32%)
	1204 (100%)	552 (100%)