Table 1. ELISA and neutralization titers.

	Reciprocal endpoint ELISA titer						IC50 neutralization titer
	IMV		L1		A33
Immunization	3 wk	6 wk	3 wk	6 wk	3 wk	6 wk	3 wk	6 wk
None	< 100	< 100	< 100	< 100	< 100	< 100	< 50	< 50
108 pfu MVA*	6,400	102,400	6,400	51,200	1,600	51,200	583	12,130
107 pfu MVA*	800	25,600	1,600	12,800	800	25,600	139	2,835
106 pfu MVA*	200	6,400	200	3,200	< 100	3,200	< 50	1,046
5 × 105 pfu Dryvax†	6,400	25,600	1,600	12,800	1,600	3,200	1,181	6,323

^*Eight mice were immunized at 0 time and bled on week 3; four mice were reimmunized on week 4 and bled on week 6.

^†Eight mice were immunized at 0 time and bled on week 3; four mice were bled on week 6.