Table 2. Proportion of individuals by age group with IFN-γ responses to MSP142-3D7 as detected by ELISPOT.
| Age Group (years) | Number IFN-γ Responders/Number Tested (%) |
| 0.5 | 2/10 (20)* |
| 1 | 4/9 (44) |
| 2 | 5/10 (50) |
| 5 | 5/10 (50) |
| ≥18 | 9/10 (90)* |
Notes: The proportion of responders did not significantly differ when comparing children less than 5 years old across different age groups (P>0.05).
*However by two-tailed Fisher's exact test infants 0.5 years of age had significantly fewer responders compared to adults older than 18 years (P = 0.01).