Table 3.

 Virus excretion data for vaccinated and naïve pigs post‐exposure to sw/England/453/06, measured by qPCR

Pig number	Pair ID	Immune status	Virus challenge	Pre challenge antibody level	Post‐challenge antibody level (d.p.e. sampled)	Days post‐exposure
						1	2	3	4	5	6	7	8	9	10
405	1	Naïve	Intranasal	<20	320 (29)	0	1246	1471	1010	5443	86	12	128	0	0
410	1	Naïve	Intranasal	<20	160 (29)	0	983	1543	481	2186	229	31	33	0	0
409	2	Vaccinated	In contact	<20	320 (19)	0	0	38	0	7·0	513	0	0	0	0
417	2	Vaccinated	In contact	20	2560 (19)	0	0	13	0	46	611	29	3	0	12
401	3	Vaccinated	In contact	20	20 (7)	0	0	1071	0	0	35	0
402	3	Vaccinated	In contact	20	20 (7)	0	0	63	0	0	0	0
415	4	Vaccinated	In contact	40	40 (11.)	0	0	10	0	21	0	0	0	0	0
416	4	Vaccinated	In contact	40	40 (11.)	0	0	0	0	8	0	24	0	0	0
403	5	Vaccinated	In contact	80	80 (9)	0	0	0	0	0	0	0	0	0
406	5	Vaccinated	In contact	160	160 (9)	0	0	0	0	0	52	0	0	0
412	6	Naïve	In contact	<20	320 (12)	0	0	0	2836	2100	1729	405	61	0	0
414	6	Naïve	In contact	<20	320 (12)	0	0	0	0	1386	786	117	421	0	0
400	7	Naïve	In contact	<20	20 (8)	0	0	0	0	127	46	0
413	7	Naive	In contact	<20	>20	0	0	0	63	76	0	0

Data presented as viral RNA copy number/μl swab extract. Shaded cells, no sample collected (pig euthanased).