Figure 4From: Alpha-galactosylceramide enhances protective immunity induced by DNA vaccine of the SAG5D gene of Toxoplasma gondii Measurement of specific IgG antibodies in sera of immunized mice. Sera were collected two days prior to each immunization and determined by ELISA. Results are shown as means of OD 490 ± SD and statistical differences (P < 0.05) are indicated by * compared with PBS, α-GalCer or pEGFP-C1.Back to article page