Which toxin is principally associated in the material with tetanus pathogenesis?

The pathogenesis sequence names **tetanospasmin** (along with tetanolysin) as a toxin produced after spore germination. Tetanospasmin is linked to inhibitory neurotransmitter blockade and the resulting rigidity and spasms. The other options are not tetanus toxins in the material. **Key takeaway:** Tetanospasmin is the key toxin in the described neurologic mechanism.\n\n**Glossary:** **Pathogenesis**: the process by which a disease develops.