Fig. 4From: A highly infectious Plasmodium yoelii parasite, bearing Plasmodium falciparum circumsporozoite proteinAntibody titres against PfCSP in the sera of PfCSP/Py-immunized mice. BALB/c mice were twice immunized with PfCSP/Py Spz. One day before challenge with live PfCSP/Py Spz, the sera were collected and the antibody titres were determined by ELISA. Red and black symbols represent the protected and non-protected mice (shown in Table 4), respectivelyBack to article page