Table 2.

Immunogenicity of P. falciparum (Pf) Circumsporozoite Protein (PfCSP) and P. yoelii (Py) CSP DNA Constructs in VR1020 and VR1020-DV




Dose 2

Dose 3
PfCSP-VR1020 40 (0-160)a 2560 (0-120)a
PfCSP-VR1020-DV 40 (0-160)a 1280 (0-2560)a
PyCSP-VR1020 2560 (0-10,240)b 5120 (0-20,480)b
PyCSP-VR1020-DV 1280 (0-5120)b 2560 (0-5120)b
VR1020
0ab
0ab

Groups of 10 CD-1 mice were immunized ID with 100 μg of each DNA construct. Sera were collected 2 wks after doses 2 and 3.

a Sera tested by IFAT on air-dried P. falciparum sporozoites.

b Sera tested by IFA on air-dried P. yoelli sporozoites.