Clostridium botulinum

This bacteria naturally inhabits soil and is know to cause the serious food poisoning botulism. This bacteria is also used in medicines for the treatment of muscle spasms, cross-eye, some focal dystonias and even in anti-aging wrinkle treatments.

Full: Clostridium botulinum
Japanese: C. ボツリナム, C. botsurinamu
Type: Bacteria

Manga Notes:
Present in the soil it is widespread throughout nature. It hates air and is surrounded by spores, but it contains the deadliest poison on earth. Just 25G of it is able to wipe out the human race. It is commonly known as Botulinus bacteria. (Ch 10)

Story Details:
This microbe is first seen around the natto when we see Itsuki Keizou Sensei digging near the student rice fields.