April 10, 1972 (, Yam Tze February 27), the Biological Weapons Convention (BWC) was signed. Convention

"Biological Weapons Convention (BWC) the full name of the Prohibition of Bacteriological (Biological) and Toxin Weapons and development, production and storage, and destruction of these weapons." Convention, a total of 15, the main content is: do not develop in any case, the State party does not produce, do not save, do not obtain microbial agents, toxins and their weapons other than peaceful purposes; nor to assist, encourage or guide his country to obtain such preparations toxin weapons; within nine months after the entry into force of the Convention, the State party to the destruction of all such preparations, toxin weapons; States Parties to the United Nations Security Council, accusing the behavior of other countries in violation of the Convention. the
draft convention on September 28, 1971 by the United States, the United Kingdom, the Soviet Union and 12 countries jointly submitted to the 26th session of the UN General Assembly, the General Assembly passed a resolution, decided to recommend to this Convention. April 10, 1972, signed in Washington, London and Moscow. The Convention entered into force March 26, 1975. Countries in compliance with the Convention on a voluntary basis. September 20, 1984, China decided to join this Convention. November 15, 1984, respectively, to the government of Britain, the United States, the Soviet Union, the deposit of its instrument of accession book, the Convention into force in China on the same day. To July 2001, a total of 162 countries have signed the Convention, 144 countries have ratified the Convention.