Figure 9.

The viability of splenocytes after immunization. The splenocytes were collected from the spleen of mice at 4 weeks after boost immunization, and the cells were incubated with T. gondii lysate antigen (TLA) (1 μg/mL) or without TLA for 72 h. The cell viability was measured by the MTT assay. The groups were divided into three groups as follows: the normal group, the non-immunized group infected with TLA (the non-immunized TLA infection group), and the TLA-infected group immunized with SAG1-VLPs (the immunized TLA infection group).