101 years ago today, on January 25, 1924 (December 20, 1923, the Lunar Calendar), 28 countries established the World Organization for Animal Health. The World Organization for Animal Health (OIE) is an intergovernmental organization created by an international agreement signed by 28 countries on January 25, 1924. By December 1999, the number of OIE member states had reached 155. The functions of the World Organization for Animal Health mainly include the following three aspects: -Notify governments of animal epidemics occurring around the world and their causes, and inform them of methods to control these diseases. - Conduct international research on the surveillance and control of animal diseases on a global scale. - Coordinate regulations and standards of member states on trade in animals and animal products.