Dr.Feifan Tang (F.F.Tang) was indeed ’a friend to man’ as our old English eighteenth-century phrase has it; he loved the Chinese people and was a doughty fighter in the fundamental field of preventive medicine.With all friends here, I salute his memory and I am sure he will never be forgotten in China. The famous British scientist Joseph Needham wrote this in 1979 in his letter to the then director of the National Vaccine & Serum Institute of China, when he received the obituary notice of Dr.F.F.Tang who had died in 1958.