Table I.

Humoral response to vaccination as measured by the single radial haemolysis (SRH) assay (mm²) with A/eq/South Africa/4/03 (SA/4/03), A/eq/Newmarket/2/93 (N/2/93), A/eq/Newmarket/1/93 (N/1/93) and A/eq/Sydney/2888-8/07 (SY/07) used as antigens. Post-infection seroconversions are indicated in italic text and were taken as an increase in the haemolysis zone of 25 mm² or 50% between pre- and post-infection sera.

Time point	V1	V1 + 14d	V1 + 28d	V2 + 14d	V2 + 14d	V2 + 14d	V2 + 14d	C + 14d	C + 14d	C + 14d	C + 14d
SRH antigen	SA/4/03	SA/4/03	SA/4/03	SA/4/03	N/2/93	SY/07	N/1/93	SA/4/03	N/2/93	SY/07	N/1/93
Group 1 – Controls
#1992	0	0	0	0	0	0	0	138.1	107.9	174.3	115.6
#2234	0	0	0	0	0	0	0	204.1	188.9	236.1	138.1
#3241	0	0	0	0	0	0	0	142.4	98.6	169.6	84.5
#3791	0	0	0	0	0	0	0	179.1	184	244.5	184
#5654	0	0	0	0	0	0	0	142.4	133.9	164.9	123.6
Group 2 – ProteqFlu
#2217	0	115.6	136	115.6	59.4	117.6	136	225.1	188.9	214.5	174.3
#2666	0	74.6	109.8	169.6	107.9	144.6	151.6	230.6	204.1	219.8	176.7
#3409	0	96.7	125.6	123.6	62.3	127.6	131.8	253	236.1	303.8	198.9
#3712	0	142.4	131.8	174.3	106	167.2	176.7	146.8	162.6	193.9	160.3
#5728	0	82.8	109.8	186.4	107.9	167.2	155.7	179.1	164.9	196.4	131.8
Group 3 – EquipF
#3013	0	55.1	59.4	96.7	47	93.2	81.1	179.1	184	206.6	107.9
#3170	0	16.7	34.8	102.2	65.3	111.7	96.7	193.9	184	209.2	162.6
#3689	0	144.6	102.2	209.2	136	209.2	188.7	160.3	169.6	174.3	123.6
#3724	0	69.9	69.9	167.2	113.6	129.7	155.7	230.6	184	230.6	115.6
#6202	0	55.1	65.3	158	87.9	121.5	115.6	198.9	164.9	198.9	133.9
Group 4 – Previously infected
#4818	0	24.1	40.7	23.1	0	25.1	11	81.1	77.8	89.6	48.3
#4900	0	21.1	0	17.6	0	23.1	15	81.1	63.8	89.6	38.3
#5146	93	73	76.2	81.1	35.9	63.8	51	96.7	63.8	109.8	60.8
#5875	0	0	0	0	0	0	0	142.4	133.9	164.9	35.9