(A) G. lamblia serial stool shedding determined by
qPCR on indicated dpi (***P < 0.001) and (B)
in small bowel intestinal tissues at 15 dpi (*P < 0.04 and
***P < 0.001 vs. duodenum). Dashed line represents the
limit of detection on both graphs. (C) Growth curves measuring the
percentage of change in weight beginning on the day of infection with G.
lamblia H3 cysts (n = 8), G. lamblia
WB trophozoites (n = 8), or PBS control (n = 3;
original PBS control was n = 4, but 1 mouse was excluded
secondary to significant gavage trauma and >20% weight loss by day 4).
*P = 0.05, 12 dpi; **P < 0.01, 15 dpi;
H3 cysts versus PBS.