Table 1.

Determination of antibodies titers and sero-neutralization of pooled sera from immunized mice

Immunogen	Antibodies Titration						Sero- IgG IgG1 IgG2a neutralization
	IgG		IgG1		IgG2a
	Beforea	Afterb	Before	After	Before	After	Before	After
NS1	5000	6400	5000	5000	1200	3000	0	40
NS1 + adjuvant	15000	18000	15000	15000	1600	3200	0	40
SA14-14-2	1200	1000	300	0	2400	2400	80	80
PBS	0	600	0	0	0	2400	0	40

^a Sera collected two weeks after 2^nd boost and two weeks before challenge.

^b Sera collected four weeks after challenge.