How many countries have outlawed biological weapons?

As of now, over 180 countries have ratified the Biological Weapons Convention (BWC), which prohibits the development, production, and stockpiling of biological and toxin weapons. This international treaty, established in 1972, serves as a key framework for the global commitment to outlaw biological weapons. While not all countries have ratified it, the vast majority are bound by its principles, reflecting a widespread consensus against the use of biological weapons.