Figure 4.
Increased serum antibody titres in NcT-infected mice. Serum ELISA titres of total (a) or NcS-specific (b) antibodies of the indicated isotypes detected in mice sera collected 15 days after i.p. inoculation with PBS (open bars), 5 × 105N. caninum tachyzoites (closed bars) or 5 × 105N. caninumγ-irradiated tachyzoites (dashed bars). Bars represent the mean plus 1 SD of four mice per control groups and six mice per N. caninum-infected groups. This is one representative result of three independent experiments. ND, not detected.