. 2004 Mar;72(3):1594–1602. doi: 10.1128/IAI.72.3.1594-1602.2004

TABLE 1.

Comparison of routes of immunization

Vaccine	Route	Relative parasite burden^a	Immunofluorescent antibody titer
Vaccine	Route	Relative parasite burden^a	Sporozoite^b	Blood stage^b	Liver stage^c
PY00835	Gene gun	−0.1	2,560	20	ND
	IM	0.3	Neg	Neg	ND
PY01316	Gene gun	−1.3*	2,560	20	Neg
	IM	0.5	Neg	Neg	ND
PY01828	Gene gun	0.1	2,560	640	Pos
	IM	0.1	Neg	Neg	ND
CSP	Gene gun	−0.1	2,560	Neg	Neg
	IM	−2.7*	2,560	Neg	ND

Parasite burden in liver is in comparison with that in challenged unvaccinated mice and is expressed as log₁₀. *, parasite burden significantly different (P < 0.05) versus that in challenged unvaccinated mice.

Shown are the antibody titers from pooled antisera. Values are the last dilution at which florescence was detected. Neg, negative; Pos, positive; ND, not done.

Sera tested at a single dilution (1:80).