Figure 5.

Effect of NK cell depletion on the course of P. chabaudi challenge infection in BALB/c mice chronically infected with B. microti. BALB/c mice with chronic B. microti infection were treated with anti-asialo-GM1 antibody for NK cell depletion (test group) or control rabbit antibody (control group). Parasitemia (A), hematocrit (B), body weight (C), and survival rates (D) were monitored over a period of 28 days after challenge infection with P. chabaudi. Results are expressed as mean values ± the SD of six mice. Mean percent parasitemia, hematocrit, and body weight values are calculated from individual values taken from all surviving mice at each specific time point.