Table 1 Inhibitory activity of immune sera from the DNA vaccines on the in vitro formation of P. yoelii zygotes and ookinetes

Naïve mice

45.0 (39–51)

13.5 (8–17)

Vector control

42.0 (37–47)

11.5 (9–14)

14.8

Pys25

2.5 (1–4)^a

0.0 (0–1)^a

100

Pys48

4.5 (3–6)^a

0.5 (0–1)^a

96.3

Pys25 + Pys48

6.0 (4–8)^a

0.5 (0–1)^a

96.3