Table 5.

Toxicity of tetanus toxin expressed as multiple of the mouse minimal lethal dose (MMLD).

Way of Injection	Hen	Pigeon	Goose	Frog	Gold Fish	Lizard
i.m.	100,000	12,000	3000	3000	17	2
intra-brain *						2

Data from [47,87,88,89]. * No information was given on the exact point of injection within the brain.