Severity grade | Challenge group | Total | |||||
---|---|---|---|---|---|---|---|
(n = 6 for each group) | |||||||
Group 1 2,500 PfSPZ 10 µL × 2 IM | Group 2 2,500 PfSPZ 50 µL × 2 IM | Group 3 2,500 PfSPZ 250 µL × 2 IM | Group 4 3,200 PfSPZ 500 µL × 1 DVI | Group 5 25,000 PfSPZ 10 µL × 2 IM | Group 6 75,000 PfSPZ 10 µL × 2 IM | ||
No subjects with P. falciparum parasitaemia | 4 | 1 | 2 | 6 | 6 | 6 | 25 |
Grade 1 | 25 | 21 | 23 | 51 | 53 | 62 | 235 |
Grade 2 | 18 | 8 | 18 | 28 | 19 | 26 | 117 |
Grade 3 | 2 | 0 | 4 | 6 | 4 | 9 | 25 |
Total | 45 | 29 | 45 | 85 | 76 | 97 | 377 |