Mr Yao Wei, deputy director of Tianyuan' s R&D Center, attended the Seventh Annual Vaccine Conference held in Washington D.C. on November 8, 2009. During the conference, he talked and held discussions with representatives from United States, Canada, Japan and other countries on novel technology for human vaccines and the future intent of cooperation. After the conference, Mr Yao Wei also visited the R&D center of Novartis in Cambridge, Boston and exchanged opinions with Dr Jeffrey, Novartis vaccine global R&D director, on the progress in vaccine development and technology, and discussed about its adjuvant MF59 in the application of vaccines in detail.