Time course of non-lethal malaria ( P.chabaudi chabaudi ) infection in female DBA-2 and C57BL/6 mice. Parasitaemia rates (%PE) were determined following inoculation of P. c. chabaudi (2 × 107 PE i.p.) on infection day 0 (PID0). Bar heights are means ± S.E.M. of % of parasitized erythrocytes (%PE). Number of mice used (N): DBA-2 = 5; C57BL/6 = 5.