Joseph Needham was appointed a member of the International Scientific Commission to assist with the investigation of alleged bacterial warfare by American forces in Korea and China. He arrived in China in June 1952. The first meeting was held on 23 Jun. 1952 and the final meeting was held on 31 Aug. 1952. The concluding 'Report of the International Scientific Commission for the Investigation of the Facts Concerning Bacterial Warfare in Korea and China' was published in Beijing in 1952. Scientists from six countries confirmed the findings of the Chinese and Korean scientists.
See also NRI2/6/13 for a notebook containing phrases in English and Chinese written during Joseph Needham's 1952 visit.