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. 2023 Jan 5;13:1099184. doi: 10.3389/fmicb.2022.1099184

Table 4.

Estimated lethal doses for BoNT/A1 in humans.

Route of contamination Estimated lethal doses (ng/kg−1)
Oral 1,000
Inhalation 10–15
Intravenously and intramuscularly 1–2

BoNT, Botulism neurotoxin.