Table 1.

Reactivity with the ectodomain of S protein (aa 12–1193)

OD valuesa	V5-S-HISb	V5-OVA-HISc
OD > 0.0	1152
OD > 0.1	893	439
OD > 0.2	739	94
OD > 0.3	688	22
OD > 0.4	657	11
OD > 0.5	620	7
OD > 0.6	593	6
OD > 0.7	565	6
OD > 0.8	541	6
OD > 0.9	520	6
OD > 1.0	508	4
OD > 1.5	438	3
OD > 2.0	401	3
OD > 2.5	375	3
OD > 3.0	352	2
OD > 3.5	298	2
OD > 4.0	136	0

^aS positive supernatants with shown OD value or with greater.

^bS positive supernatants accumulate from highest OD to lowest OD.

^cNumber of supernatants in each group that reacted with control V5-OVA-HIS.