TABLE 1.

Passive protection by adoptive transfer of antibodies but not splenocytes

Transferred materiala	% Survivors (no. of survivors/no. total)
	Serac	Splenocytesc	T-cell-enriched splenocytes	B cells
Live virus	100 (7/7)	27 (3/11)	0 (0/4)	0 (0/4)
pE (i.m.e)	75 (6/8)	0 (0/6)	0 (0/5)	0 (0/5)
pE (gene gun)	67 (6/9)	0 (0/6)	0 (0/5)	0 (0/4)
pcDNA3b	0 (0/7)	0 (0/6)	NDd	ND
Naïve	0 (0/5)	0 (0/9)	ND	ND

^aTransferred materials were prepared from C3H/HeN mice that were immunized with DNA or live JEV vaccines as described in the legend to Fig. 4. 

^bData are included for both intramuscular and gene gun immunization. 

^cData are from two independent experiments. 

^dND, not done. 

^ei.m., intramuscular.