(a)
(b)
Figure 3: (a) Levels of serum IgG against HBHA and HrpA before treatment in smear at entry subgrouped between 1+ and 2+ and 3+. Vertical lines: mean values and . (b) Serum IgG levels and avidity indices against HBHA and HrpA after treatment in smear at entry subgrouped between 1+ and 2+ and 3+. Vertical lines: mean values and , .