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. 2014 Mar 26;9(3):e93463. doi: 10.1371/journal.pone.0093463

Table 1. Ip LD50 of native and chimeric toxins.

Toxin LD50, ng* 95% CI*
Stx1a 430 250–620
211 2300 1300–4600
Stx2a 2.2 2.0–2.6
122 2.3 1.7–3.1

*LD50 and confidence intervals were determined by Probit analysis after taking the log of the values.