Figure 4. Vaccination with APR-1 Reduces Fecal Egg Counts of Dogs after Challenge Infection with Hookworms.

Statistically significant reduction (p = 0.018) in median fecal egg counts sampled on days 21, 23, and 26 of dogs vaccinated with APR-1 compared to dogs that received adjuvant alone.

(A). Geometric mean values of fecal egg counts from vaccinated and control dogs between challenge infection and necropsy.

(B). Error bars refer to the standard error of the mean.