Figure 2. The antimetastatic effect of malaria infection after tumor surgery in mice.
A, 5×105 LLC cells were injected s.c. into the right flank of C57BL/6 mice. After 15 days of tumor growth, primary tumors were surgically removed. Mice were followed for an additional 5 days to recovery, then half of the mice were infected with P. yoelii 17XNL and the others were injected with an equivalent number of uninfected erythrocytes. B, Data shows the survival curves of mice after primary tumor removal. P. yoelii 17XNL infected mice survived much longer than their uninfected counterparts (n = 11).