Table 1.

Numbers of immunoglobulin-secreting cells of the indicated isotypes detected in the spleen of BALB/c mice 7 days after i.p. injection with PBS, or 5 × 10⁵ N. caninum tachyzoites (NcT) or with the same number of irradiated NcT (Irr-NcT)

Injection i.p.	IgG1	IgG2a	IgG2b	IgG3	IgM
PBS	52 034 ± 29081	47 214 ± 19 605	758 ± 59	2645 ± 694	698 226 ± 206 261
NcT	62 901 ± 5442	111 852 ± 2816**	1823 ± 431**	5621 ± 702*	1 634 721 ± 311 355*
Irr-NcT	66 492 ± 13 186	80 554 ± 19 537*	1240 ± 591	3808 ± 1365	1 266 213 ± 184 402*

¹Values are means ± 1 SD of immunoglobulin-secreting cells of four mice per group and are one representative result of three independent experiments. Significance of the results between control (PBS) and NcT or Irr-NcT groups determined using anova is indicated in the table

^*P < 0·05

^**P < 0·01.