TABLE 3.

Stx1 and Stx2 IgG ELISA and neutralization titers from mice immunized with the triple-chimeric B subunit ABC

Toxin	Titer
	ELISAa	Neutralizationb
Stx1	5.1 ± 0.6	2.7 ± 1.1
Stx2	3.8 ± 0.4	0.4 + 0.6

^aThe geometric means ± standard deviations of the log IgG serum titers to Stx1 or Stx2.

^bThe geometric means ± standard deviations of the log 50% neutralization titers to approximately 10 or 25 CD₅₀s of Stx1 or Stx2, respectively. Sera from 12 out of 13 or 2 out of 13 mice neutralized Stx1 or Stx2, respectively. Samples that did not neutralize Stx1 or Stx2 were assigned a value of 0.3.